20996200

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1721}}^1$

素因数の和:1798

約数の個数: 48

約数和(自身を含む): 49645260

約数和(自身を除く): 28649060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 1721, 2440, 3050, 3442, 6100, 6884, 8605, 12200, 13768, 17210, 34420, 43025, 68840, 86050, 104981, 172100, 209962, 344200, 419924, 524905, 839848, 1049810, 2099620, 2624525, 4199240, 5249050, 10498100, 20996200]

約数ペア:

[(1, 20996200), (2, 10498100), (4, 5249050), (5, 4199240), (8, 2624525), (10, 2099620), (20, 1049810), (25, 839848), (40, 524905), (50, 419924), (61, 344200), (100, 209962), (122, 172100), (200, 104981), (244, 86050), (305, 68840), (488, 43025), (610, 34420), (1220, 17210), (1525, 13768), (1721, 12200), (2440, 8605), (3050, 6884), (3442, 6100)]