64800320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 112

約数和(自身を含む): 171072048

約数和(自身を除く): 106271728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 296, 320, 370, 416, 421, 481, 520, 592, 740, 832, 842, 962, 1040, 1184, 1480, 1684, 1924, 2080, 2105, 2368, 2405, 2960, 3368, 3848, 4160, 4210, 4810, 5473, 5920, 6736, 7696, 8420, 9620, 10946, 11840, 13472, 15392, 15577, 16840, 19240, 21892, 26944, 27365, 30784, 31154, 33680, 38480, 43784, 54730, 62308, 67360, 76960, 77885, 87568, 109460, 124616, 134720, 153920, 155770, 175136, 202501, 218920, 249232, 311540, 350272, 405002, 437840, 498464, 623080, 810004, 875680, 996928, 1012505, 1246160, 1620008, 1751360, 2025010, 2492320, 3240016, 4050020, 4984640, 6480032, 8100040, 12960064, 16200080, 32400160, 64800320]

約数ペア:

[(1, 64800320), (2, 32400160), (4, 16200080), (5, 12960064), (8, 8100040), (10, 6480032), (13, 4984640), (16, 4050020), (20, 3240016), (26, 2492320), (32, 2025010), (37, 1751360), (40, 1620008), (52, 1246160), (64, 1012505), (65, 996928), (74, 875680), (80, 810004), (104, 623080), (130, 498464), (148, 437840), (160, 405002), (185, 350272), (208, 311540), (260, 249232), (296, 218920), (320, 202501), (370, 175136), (416, 155770), (421, 153920), (481, 134720), (520, 124616), (592, 109460), (740, 87568), (832, 77885), (842, 76960), (962, 67360), (1040, 62308), (1184, 54730), (1480, 43784), (1684, 38480), (1924, 33680), (2080, 31154), (2105, 30784), (2368, 27365), (2405, 26944), (2960, 21892), (3368, 19240), (3848, 16840), (4160, 15577), (4210, 15392), (4810, 13472), (5473, 11840), (5920, 10946), (6736, 9620), (7696, 8420)]