51561720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 288

約数和(自身を含む): 202737600

約数和(自身を除く): 151175880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 49, 56, 60, 63, 70, 72, 74, 79, 84, 90, 98, 105, 111, 120, 126, 140, 147, 148, 158, 168, 180, 185, 196, 210, 222, 237, 245, 252, 259, 280, 294, 296, 315, 316, 333, 360, 370, 392, 395, 420, 441, 444, 474, 490, 504, 518, 553, 555, 588, 630, 632, 666, 711, 735, 740, 777, 790, 840, 882, 888, 948, 980, 1036, 1106, 1110, 1176, 1185, 1260, 1295, 1332, 1422, 1470, 1480, 1554, 1580, 1659, 1665, 1764, 1813, 1896, 1960, 2072, 2205, 2212, 2220, 2331, 2370, 2520, 2590, 2664, 2765, 2844, 2923, 2940, 3108, 3160, 3318, 3330, 3528, 3555, 3626, 3871, 3885, 4410, 4424, 4440, 4662, 4740, 4977, 5180, 5439, 5530, 5688, 5846, 5880, 6216, 6636, 6660, 7110, 7252, 7742, 7770, 8295, 8769, 8820, 9065, 9324, 9480, 9954, 10360, 10878, 11060, 11613, 11655, 11692, 13272, 13320, 14220, 14504, 14615, 15484, 15540, 16317, 16590, 17538, 17640, 18130, 18648, 19355, 19908, 20461, 21756, 22120, 23226, 23310, 23384, 24885, 26307, 27195, 28440, 29230, 30968, 31080, 32634, 33180, 34839, 35076, 36260, 38710, 39816, 40922, 43512, 43845, 46452, 46620, 49770, 52614, 54390, 58065, 58460, 61383, 65268, 66360, 69678, 70152, 72520, 77420, 81585, 81844, 87690, 92904, 93240, 99540, 102305, 105228, 108780, 116130, 116920, 122766, 130536, 131535, 139356, 143227, 154840, 163170, 163688, 174195, 175380, 184149, 199080, 204610, 210456, 217560, 232260, 245532, 263070, 278712, 286454, 306915, 326340, 348390, 350760, 368298, 409220, 429681, 464520, 491064, 526140, 572908, 613830, 652680, 696780, 716135, 736596, 818440, 859362, 920745, 1052280, 1145816, 1227660, 1289043, 1393560, 1432270, 1473192, 1718724, 1841490, 2148405, 2455320, 2578086, 2864540, 3437448, 3682980, 4296810, 5156172, 5729080, 6445215, 7365960, 8593620, 10312344, 12890430, 17187240, 25780860, 51561720]

約数ペア:

[(1, 51561720), (2, 25780860), (3, 17187240), (4, 12890430), (5, 10312344), (6, 8593620), (7, 7365960), (8, 6445215), (9, 5729080), (10, 5156172), (12, 4296810), (14, 3682980), (15, 3437448), (18, 2864540), (20, 2578086), (21, 2455320), (24, 2148405), (28, 1841490), (30, 1718724), (35, 1473192), (36, 1432270), (37, 1393560), (40, 1289043), (42, 1227660), (45, 1145816), (49, 1052280), (56, 920745), (60, 859362), (63, 818440), (70, 736596), (72, 716135), (74, 696780), (79, 652680), (84, 613830), (90, 572908), (98, 526140), (105, 491064), (111, 464520), (120, 429681), (126, 409220), (140, 368298), (147, 350760), (148, 348390), (158, 326340), (168, 306915), (180, 286454), (185, 278712), (196, 263070), (210, 245532), (222, 232260), (237, 217560), (245, 210456), (252, 204610), (259, 199080), (280, 184149), (294, 175380), (296, 174195), (315, 163688), (316, 163170), (333, 154840), (360, 143227), (370, 139356), (392, 131535), (395, 130536), (420, 122766), (441, 116920), (444, 116130), (474, 108780), (490, 105228), (504, 102305), (518, 99540), (553, 93240), (555, 92904), (588, 87690), (630, 81844), (632, 81585), (666, 77420), (711, 72520), (735, 70152), (740, 69678), (777, 66360), (790, 65268), (840, 61383), (882, 58460), (888, 58065), (948, 54390), (980, 52614), (1036, 49770), (1106, 46620), (1110, 46452), (1176, 43845), (1185, 43512), (1260, 40922), (1295, 39816), (1332, 38710), (1422, 36260), (1470, 35076), (1480, 34839), (1554, 33180), (1580, 32634), (1659, 31080), (1665, 30968), (1764, 29230), (1813, 28440), (1896, 27195), (1960, 26307), (2072, 24885), (2205, 23384), (2212, 23310), (2220, 23226), (2331, 22120), (2370, 21756), (2520, 20461), (2590, 19908), (2664, 19355), (2765, 18648), (2844, 18130), (2923, 17640), (2940, 17538), (3108, 16590), (3160, 16317), (3318, 15540), (3330, 15484), (3528, 14615), (3555, 14504), (3626, 14220), (3871, 13320), (3885, 13272), (4410, 11692), (4424, 11655), (4440, 11613), (4662, 11060), (4740, 10878), (4977, 10360), (5180, 9954), (5439, 9480), (5530, 9324), (5688, 9065), (5846, 8820), (5880, 8769), (6216, 8295), (6636, 7770), (6660, 7742), (7110, 7252)]