251753840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3613}}^1$

素因数の和:3706

約数の個数: 80

約数和(自身を含む): 639938208

約数和(自身を除く): 388184368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 2680, 3484, 3613, 4355, 5360, 6968, 7226, 8710, 13936, 14452, 17420, 18065, 28904, 34840, 36130, 46969, 57808, 69680, 72260, 93938, 144520, 187876, 234845, 242071, 289040, 375752, 469690, 484142, 751504, 939380, 968284, 1210355, 1878760, 1936568, 2420710, 3146923, 3757520, 3873136, 4841420, 6293846, 9682840, 12587692, 15734615, 19365680, 25175384, 31469230, 50350768, 62938460, 125876920, 251753840]

約数ペア:

[(1, 251753840), (2, 125876920), (4, 62938460), (5, 50350768), (8, 31469230), (10, 25175384), (13, 19365680), (16, 15734615), (20, 12587692), (26, 9682840), (40, 6293846), (52, 4841420), (65, 3873136), (67, 3757520), (80, 3146923), (104, 2420710), (130, 1936568), (134, 1878760), (208, 1210355), (260, 968284), (268, 939380), (335, 751504), (520, 484142), (536, 469690), (670, 375752), (871, 289040), (1040, 242071), (1072, 234845), (1340, 187876), (1742, 144520), (2680, 93938), (3484, 72260), (3613, 69680), (4355, 57808), (5360, 46969), (6968, 36130), (7226, 34840), (8710, 28904), (13936, 18065), (14452, 17420)]