817700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 72

約数和(自身を含む): 2077992

約数和(自身を除く): 1260292

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 37, 50, 52, 65, 68, 74, 85, 100, 130, 148, 170, 185, 221, 260, 325, 340, 370, 425, 442, 481, 629, 650, 740, 850, 884, 925, 962, 1105, 1258, 1300, 1700, 1850, 1924, 2210, 2405, 2516, 3145, 3700, 4420, 4810, 5525, 6290, 8177, 9620, 11050, 12025, 12580, 15725, 16354, 22100, 24050, 31450, 32708, 40885, 48100, 62900, 81770, 163540, 204425, 408850, 817700]

約数ペア:

[(1, 817700), (2, 408850), (4, 204425), (5, 163540), (10, 81770), (13, 62900), (17, 48100), (20, 40885), (25, 32708), (26, 31450), (34, 24050), (37, 22100), (50, 16354), (52, 15725), (65, 12580), (68, 12025), (74, 11050), (85, 9620), (100, 8177), (130, 6290), (148, 5525), (170, 4810), (185, 4420), (221, 3700), (260, 3145), (325, 2516), (340, 2405), (370, 2210), (425, 1924), (442, 1850), (481, 1700), (629, 1300), (650, 1258), (740, 1105), (850, 962), (884, 925)]