20157921160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{971}}^1$

素因数の和:1128

約数の個数: 192

約数和(自身を含む): 51100217280

約数和(自身を除く): 30942296120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 83, 104, 130, 148, 166, 169, 185, 260, 296, 332, 338, 370, 415, 481, 520, 664, 676, 740, 830, 845, 962, 971, 1079, 1352, 1480, 1660, 1690, 1924, 1942, 2158, 2405, 3071, 3320, 3380, 3848, 3884, 4316, 4810, 4855, 5395, 6142, 6253, 6760, 7768, 8632, 9620, 9710, 10790, 12284, 12506, 12623, 14027, 15355, 19240, 19420, 21580, 24568, 25012, 25246, 28054, 30710, 31265, 35927, 38840, 39923, 43160, 50024, 50492, 56108, 61420, 62530, 63115, 70135, 71854, 79846, 80593, 100984, 112216, 122840, 125060, 126230, 140270, 143708, 159692, 161186, 164099, 179635, 199615, 250120, 252460, 280540, 287416, 319384, 322372, 328198, 359270, 399230, 402965, 467051, 504920, 518999, 561080, 644744, 656396, 718540, 798460, 805930, 820495, 934102, 1037998, 1047709, 1312792, 1437080, 1596920, 1611860, 1640990, 1868204, 2075996, 2095418, 2335255, 2594995, 2981941, 3223720, 3281980, 3736408, 4151992, 4190836, 4670510, 5189990, 5238545, 5963882, 6071663, 6563960, 8381672, 9341020, 10379980, 10477090, 11927764, 12143326, 13620217, 14909705, 18682040, 20759960, 20954180, 23855528, 24286652, 27240434, 29819410, 30358315, 38765233, 41908360, 48573304, 54480868, 59638820, 60716630, 68101085, 77530466, 108961736, 119277640, 121433260, 136202170, 155060932, 193826165, 242866520, 272404340, 310121864, 387652330, 503948029, 544808680, 775304660, 1007896058, 1550609320, 2015792116, 2519740145, 4031584232, 5039480290, 10078960580, 20157921160]

約数ペア:

[(1, 20157921160), (2, 10078960580), (4, 5039480290), (5, 4031584232), (8, 2519740145), (10, 2015792116), (13, 1550609320), (20, 1007896058), (26, 775304660), (37, 544808680), (40, 503948029), (52, 387652330), (65, 310121864), (74, 272404340), (83, 242866520), (104, 193826165), (130, 155060932), (148, 136202170), (166, 121433260), (169, 119277640), (185, 108961736), (260, 77530466), (296, 68101085), (332, 60716630), (338, 59638820), (370, 54480868), (415, 48573304), (481, 41908360), (520, 38765233), (664, 30358315), (676, 29819410), (740, 27240434), (830, 24286652), (845, 23855528), (962, 20954180), (971, 20759960), (1079, 18682040), (1352, 14909705), (1480, 13620217), (1660, 12143326), (1690, 11927764), (1924, 10477090), (1942, 10379980), (2158, 9341020), (2405, 8381672), (3071, 6563960), (3320, 6071663), (3380, 5963882), (3848, 5238545), (3884, 5189990), (4316, 4670510), (4810, 4190836), (4855, 4151992), (5395, 3736408), (6142, 3281980), (6253, 3223720), (6760, 2981941), (7768, 2594995), (8632, 2335255), (9620, 2095418), (9710, 2075996), (10790, 1868204), (12284, 1640990), (12506, 1611860), (12623, 1596920), (14027, 1437080), (15355, 1312792), (19240, 1047709), (19420, 1037998), (21580, 934102), (24568, 820495), (25012, 805930), (25246, 798460), (28054, 718540), (30710, 656396), (31265, 644744), (35927, 561080), (38840, 518999), (39923, 504920), (43160, 467051), (50024, 402965), (50492, 399230), (56108, 359270), (61420, 328198), (62530, 322372), (63115, 319384), (70135, 287416), (71854, 280540), (79846, 252460), (80593, 250120), (100984, 199615), (112216, 179635), (122840, 164099), (125060, 161186), (126230, 159692), (140270, 143708)]