18680760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{353}}^1$

素因数の和:387

約数の個数: 192

約数和(自身を含む): 72640800

約数和(自身を除く): 53960040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 353, 360, 378, 392, 420, 441, 490, 504, 540, 588, 630, 706, 735, 756, 840, 882, 945, 980, 1059, 1080, 1176, 1260, 1323, 1412, 1470, 1512, 1764, 1765, 1890, 1960, 2118, 2205, 2471, 2520, 2646, 2824, 2940, 3177, 3528, 3530, 3780, 4236, 4410, 4942, 5292, 5295, 5880, 6354, 6615, 7060, 7413, 7560, 8472, 8820, 9531, 9884, 10584, 10590, 12355, 12708, 13230, 14120, 14826, 15885, 17297, 17640, 19062, 19768, 21180, 22239, 24710, 25416, 26460, 29652, 31770, 34594, 37065, 38124, 42360, 44478, 47655, 49420, 51891, 52920, 59304, 63540, 66717, 69188, 74130, 76248, 86485, 88956, 95310, 98840, 103782, 111195, 127080, 133434, 138376, 148260, 155673, 172970, 177912, 190620, 207564, 222390, 259455, 266868, 296520, 311346, 333585, 345940, 381240, 415128, 444780, 467019, 518910, 533736, 622692, 667170, 691880, 778365, 889560, 934038, 1037820, 1245384, 1334340, 1556730, 1868076, 2075640, 2335095, 2668680, 3113460, 3736152, 4670190, 6226920, 9340380, 18680760]

約数ペア:

[(1, 18680760), (2, 9340380), (3, 6226920), (4, 4670190), (5, 3736152), (6, 3113460), (7, 2668680), (8, 2335095), (9, 2075640), (10, 1868076), (12, 1556730), (14, 1334340), (15, 1245384), (18, 1037820), (20, 934038), (21, 889560), (24, 778365), (27, 691880), (28, 667170), (30, 622692), (35, 533736), (36, 518910), (40, 467019), (42, 444780), (45, 415128), (49, 381240), (54, 345940), (56, 333585), (60, 311346), (63, 296520), (70, 266868), (72, 259455), (84, 222390), (90, 207564), (98, 190620), (105, 177912), (108, 172970), (120, 155673), (126, 148260), (135, 138376), (140, 133434), (147, 127080), (168, 111195), (180, 103782), (189, 98840), (196, 95310), (210, 88956), (216, 86485), (245, 76248), (252, 74130), (270, 69188), (280, 66717), (294, 63540), (315, 59304), (353, 52920), (360, 51891), (378, 49420), (392, 47655), (420, 44478), (441, 42360), (490, 38124), (504, 37065), (540, 34594), (588, 31770), (630, 29652), (706, 26460), (735, 25416), (756, 24710), (840, 22239), (882, 21180), (945, 19768), (980, 19062), (1059, 17640), (1080, 17297), (1176, 15885), (1260, 14826), (1323, 14120), (1412, 13230), (1470, 12708), (1512, 12355), (1764, 10590), (1765, 10584), (1890, 9884), (1960, 9531), (2118, 8820), (2205, 8472), (2471, 7560), (2520, 7413), (2646, 7060), (2824, 6615), (2940, 6354), (3177, 5880), (3528, 5295), (3530, 5292), (3780, 4942), (4236, 4410)]