1215180720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6833}}^1$

素因数の和:6884

約数の個数: 240

約数和(自身を含む): 4626891360

約数和(自身を除く): 3411710640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 24, 26, 30, 36, 38, 39, 40, 45, 48, 52, 57, 60, 65, 72, 76, 78, 80, 90, 95, 104, 114, 117, 120, 130, 144, 152, 156, 171, 180, 190, 195, 208, 228, 234, 240, 247, 260, 285, 304, 312, 342, 360, 380, 390, 456, 468, 494, 520, 570, 585, 624, 684, 720, 741, 760, 780, 855, 912, 936, 988, 1040, 1140, 1170, 1235, 1368, 1482, 1520, 1560, 1710, 1872, 1976, 2223, 2280, 2340, 2470, 2736, 2964, 3120, 3420, 3705, 3952, 4446, 4560, 4680, 4940, 5928, 6833, 6840, 7410, 8892, 9360, 9880, 11115, 11856, 13666, 13680, 14820, 17784, 19760, 20499, 22230, 27332, 29640, 34165, 35568, 40998, 44460, 54664, 59280, 61497, 68330, 81996, 88829, 88920, 102495, 109328, 122994, 129827, 136660, 163992, 177658, 177840, 204990, 245988, 259654, 266487, 273320, 307485, 327984, 355316, 389481, 409980, 444145, 491976, 519308, 532974, 546640, 614970, 649135, 710632, 778962, 799461, 819960, 888290, 983952, 1038616, 1065948, 1168443, 1229940, 1298270, 1332435, 1421264, 1557924, 1598922, 1639920, 1687751, 1776580, 1947405, 2077232, 2131896, 2336886, 2459880, 2596540, 2664870, 3115848, 3197844, 3375502, 3553160, 3894810, 3997305, 4263792, 4673772, 4919760, 5063253, 5193080, 5329740, 5842215, 6231696, 6395688, 6751004, 7106320, 7789620, 7994610, 8438755, 9347544, 10126506, 10386160, 10659480, 11684430, 12791376, 13502008, 15189759, 15579240, 15989220, 16877510, 18695088, 20253012, 21318960, 23368860, 25316265, 27004016, 30379518, 31158480, 31978440, 33755020, 40506024, 46737720, 50632530, 60759036, 63956880, 67510040, 75948795, 81012048, 93475440, 101265060, 121518072, 135020080, 151897590, 202530120, 243036144, 303795180, 405060240, 607590360, 1215180720]

約数ペア:

[(1, 1215180720), (2, 607590360), (3, 405060240), (4, 303795180), (5, 243036144), (6, 202530120), (8, 151897590), (9, 135020080), (10, 121518072), (12, 101265060), (13, 93475440), (15, 81012048), (16, 75948795), (18, 67510040), (19, 63956880), (20, 60759036), (24, 50632530), (26, 46737720), (30, 40506024), (36, 33755020), (38, 31978440), (39, 31158480), (40, 30379518), (45, 27004016), (48, 25316265), (52, 23368860), (57, 21318960), (60, 20253012), (65, 18695088), (72, 16877510), (76, 15989220), (78, 15579240), (80, 15189759), (90, 13502008), (95, 12791376), (104, 11684430), (114, 10659480), (117, 10386160), (120, 10126506), (130, 9347544), (144, 8438755), (152, 7994610), (156, 7789620), (171, 7106320), (180, 6751004), (190, 6395688), (195, 6231696), (208, 5842215), (228, 5329740), (234, 5193080), (240, 5063253), (247, 4919760), (260, 4673772), (285, 4263792), (304, 3997305), (312, 3894810), (342, 3553160), (360, 3375502), (380, 3197844), (390, 3115848), (456, 2664870), (468, 2596540), (494, 2459880), (520, 2336886), (570, 2131896), (585, 2077232), (624, 1947405), (684, 1776580), (720, 1687751), (741, 1639920), (760, 1598922), (780, 1557924), (855, 1421264), (912, 1332435), (936, 1298270), (988, 1229940), (1040, 1168443), (1140, 1065948), (1170, 1038616), (1235, 983952), (1368, 888290), (1482, 819960), (1520, 799461), (1560, 778962), (1710, 710632), (1872, 649135), (1976, 614970), (2223, 546640), (2280, 532974), (2340, 519308), (2470, 491976), (2736, 444145), (2964, 409980), (3120, 389481), (3420, 355316), (3705, 327984), (3952, 307485), (4446, 273320), (4560, 266487), (4680, 259654), (4940, 245988), (5928, 204990), (6833, 177840), (6840, 177658), (7410, 163992), (8892, 136660), (9360, 129827), (9880, 122994), (11115, 109328), (11856, 102495), (13666, 88920), (13680, 88829), (14820, 81996), (17784, 68330), (19760, 61497), (20499, 59280), (22230, 54664), (27332, 44460), (29640, 40998), (34165, 35568)]