25552840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15581}}^1$

素因数の和:15633

約数の個数: 32

約数和(自身を含む): 58899960

約数和(自身を除く): 33347120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15581, 31162, 62324, 77905, 124648, 155810, 311620, 623240, 638821, 1277642, 2555284, 3194105, 5110568, 6388210, 12776420, 25552840]

約数ペア:

[(1, 25552840), (2, 12776420), (4, 6388210), (5, 5110568), (8, 3194105), (10, 2555284), (20, 1277642), (40, 638821), (41, 623240), (82, 311620), (164, 155810), (205, 124648), (328, 77905), (410, 62324), (820, 31162), (1640, 15581)]