128697725

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 175363776

約数和(自身を除く): 46666051

約数列:

[1, 5, 13, 25, 65, 83, 169, 325, 367, 415, 845, 1079, 1835, 2075, 4225, 4771, 5395, 9175, 14027, 23855, 26975, 30461, 62023, 70135, 119275, 152305, 310115, 350675, 395993, 761525, 1550575, 1979965, 5147909, 9899825, 25739545, 128697725]

約数ペア:

[(1, 128697725), (5, 25739545), (13, 9899825), (25, 5147909), (65, 1979965), (83, 1550575), (169, 761525), (325, 395993), (367, 350675), (415, 310115), (845, 152305), (1079, 119275), (1835, 70135), (2075, 62023), (4225, 30461), (4771, 26975), (5395, 23855), (9175, 14027)]