51390040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2671}}^1$

素因数の和:2732

約数の個数: 64

約数和(自身を含む): 127935360

約数和(自身を除く): 76545320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1924, 2405, 2671, 3848, 4810, 5342, 9620, 10684, 13355, 19240, 21368, 26710, 34723, 53420, 69446, 98827, 106840, 138892, 173615, 197654, 277784, 347230, 395308, 494135, 694460, 790616, 988270, 1284751, 1388920, 1976540, 2569502, 3953080, 5139004, 6423755, 10278008, 12847510, 25695020, 51390040]

約数ペア:

[(1, 51390040), (2, 25695020), (4, 12847510), (5, 10278008), (8, 6423755), (10, 5139004), (13, 3953080), (20, 2569502), (26, 1976540), (37, 1388920), (40, 1284751), (52, 988270), (65, 790616), (74, 694460), (104, 494135), (130, 395308), (148, 347230), (185, 277784), (260, 197654), (296, 173615), (370, 138892), (481, 106840), (520, 98827), (740, 69446), (962, 53420), (1480, 34723), (1924, 26710), (2405, 21368), (2671, 19240), (3848, 13355), (4810, 10684), (5342, 9620)]