78258700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1627}}^1$

素因数の和:1691

約数の個数: 72

約数和(自身を含む): 187942832

約数和(自身を除く): 109684132

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 481, 650, 740, 925, 962, 1300, 1627, 1850, 1924, 2405, 3254, 3700, 4810, 6508, 8135, 9620, 12025, 16270, 21151, 24050, 32540, 40675, 42302, 48100, 60199, 81350, 84604, 105755, 120398, 162700, 211510, 240796, 300995, 423020, 528775, 601990, 782587, 1057550, 1203980, 1504975, 1565174, 2115100, 3009950, 3130348, 3912935, 6019900, 7825870, 15651740, 19564675, 39129350, 78258700]

約数ペア:

[(1, 78258700), (2, 39129350), (4, 19564675), (5, 15651740), (10, 7825870), (13, 6019900), (20, 3912935), (25, 3130348), (26, 3009950), (37, 2115100), (50, 1565174), (52, 1504975), (65, 1203980), (74, 1057550), (100, 782587), (130, 601990), (148, 528775), (185, 423020), (260, 300995), (325, 240796), (370, 211510), (481, 162700), (650, 120398), (740, 105755), (925, 84604), (962, 81350), (1300, 60199), (1627, 48100), (1850, 42302), (1924, 40675), (2405, 32540), (3254, 24050), (3700, 21151), (4810, 16270), (6508, 12025), (8135, 9620)]