25198490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 46671120

約数和(自身を除く): 21472630

約数列:

[1, 2, 5, 10, 61, 101, 122, 202, 305, 409, 505, 610, 818, 1010, 2045, 4090, 6161, 12322, 24949, 30805, 41309, 49898, 61610, 82618, 124745, 206545, 249490, 413090, 2519849, 5039698, 12599245, 25198490]

約数ペア:

[(1, 25198490), (2, 12599245), (5, 5039698), (10, 2519849), (61, 413090), (101, 249490), (122, 206545), (202, 124745), (305, 82618), (409, 61610), (505, 49898), (610, 41309), (818, 30805), (1010, 24949), (2045, 12322), (4090, 6161)]