278938912140

素因数分解:

$2^2\times 3^3\times 5^1\times 7^4\times {\mathrm{215141}}^1$

素因数の和:215187

約数の個数: 240

約数和(自身を含む): 1012389406560

約数和(自身を除く): 733450494420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 343, 378, 420, 441, 490, 540, 588, 630, 686, 735, 756, 882, 945, 980, 1029, 1260, 1323, 1372, 1470, 1715, 1764, 1890, 2058, 2205, 2401, 2646, 2940, 3087, 3430, 3780, 4116, 4410, 4802, 5145, 5292, 6174, 6615, 6860, 7203, 8820, 9261, 9604, 10290, 12005, 12348, 13230, 14406, 15435, 18522, 20580, 21609, 24010, 26460, 28812, 30870, 36015, 37044, 43218, 46305, 48020, 61740, 64827, 72030, 86436, 92610, 108045, 129654, 144060, 185220, 215141, 216090, 259308, 324135, 430282, 432180, 645423, 648270, 860564, 1075705, 1290846, 1296540, 1505987, 1936269, 2151410, 2581692, 3011974, 3227115, 3872538, 4302820, 4517961, 5808807, 6023948, 6454230, 7529935, 7745076, 9035922, 9681345, 10541909, 11617614, 12908460, 13553883, 15059870, 18071844, 19362690, 21083818, 22589805, 23235228, 27107766, 29044035, 30119740, 31625727, 38725380, 40661649, 42167636, 45179610, 52709545, 54215532, 58088070, 63251454, 67769415, 73793363, 81323298, 90359220, 94877181, 105419090, 116176140, 126502908, 135538830, 147586726, 158128635, 162646596, 189754362, 203308245, 210838180, 221380089, 271077660, 284631543, 295173452, 316257270, 368966815, 379508724, 406616490, 442760178, 474385905, 516553541, 569263086, 632514540, 664140267, 737933630, 813232980, 885520356, 948771810, 1033107082, 1106900445, 1138526172, 1328280534, 1423157715, 1475867260, 1549660623, 1897543620, 1992420801, 2066214164, 2213800890, 2582767705, 2656561068, 2846315430, 3099321246, 3320701335, 3984841602, 4427601780, 4648981869, 5165535410, 5692630860, 6198642492, 6641402670, 7748303115, 7969683204, 9297963738, 9962104005, 10331070820, 13282805340, 13946945607, 15496606230, 18595927476, 19924208010, 23244909345, 27893891214, 30993212460, 39848416020, 46489818690, 55787782428, 69734728035, 92979637380, 139469456070, 278938912140]

約数ペア:

[(1, 278938912140), (2, 139469456070), (3, 92979637380), (4, 69734728035), (5, 55787782428), (6, 46489818690), (7, 39848416020), (9, 30993212460), (10, 27893891214), (12, 23244909345), (14, 19924208010), (15, 18595927476), (18, 15496606230), (20, 13946945607), (21, 13282805340), (27, 10331070820), (28, 9962104005), (30, 9297963738), (35, 7969683204), (36, 7748303115), (42, 6641402670), (45, 6198642492), (49, 5692630860), (54, 5165535410), (60, 4648981869), (63, 4427601780), (70, 3984841602), (84, 3320701335), (90, 3099321246), (98, 2846315430), (105, 2656561068), (108, 2582767705), (126, 2213800890), (135, 2066214164), (140, 1992420801), (147, 1897543620), (180, 1549660623), (189, 1475867260), (196, 1423157715), (210, 1328280534), (245, 1138526172), (252, 1106900445), (270, 1033107082), (294, 948771810), (315, 885520356), (343, 813232980), (378, 737933630), (420, 664140267), (441, 632514540), (490, 569263086), (540, 516553541), (588, 474385905), (630, 442760178), (686, 406616490), (735, 379508724), (756, 368966815), (882, 316257270), (945, 295173452), (980, 284631543), (1029, 271077660), (1260, 221380089), (1323, 210838180), (1372, 203308245), (1470, 189754362), (1715, 162646596), (1764, 158128635), (1890, 147586726), (2058, 135538830), (2205, 126502908), (2401, 116176140), (2646, 105419090), (2940, 94877181), (3087, 90359220), (3430, 81323298), (3780, 73793363), (4116, 67769415), (4410, 63251454), (4802, 58088070), (5145, 54215532), (5292, 52709545), (6174, 45179610), (6615, 42167636), (6860, 40661649), (7203, 38725380), (8820, 31625727), (9261, 30119740), (9604, 29044035), (10290, 27107766), (12005, 23235228), (12348, 22589805), (13230, 21083818), (14406, 19362690), (15435, 18071844), (18522, 15059870), (20580, 13553883), (21609, 12908460), (24010, 11617614), (26460, 10541909), (28812, 9681345), (30870, 9035922), (36015, 7745076), (37044, 7529935), (43218, 6454230), (46305, 6023948), (48020, 5808807), (61740, 4517961), (64827, 4302820), (72030, 3872538), (86436, 3227115), (92610, 3011974), (108045, 2581692), (129654, 2151410), (144060, 1936269), (185220, 1505987), (215141, 1296540), (216090, 1290846), (259308, 1075705), (324135, 860564), (430282, 648270), (432180, 645423)]