228928520

素因数分解:

$2^3\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{3557}}^1$

素因数の和:5177

約数の個数: 32

約数和(自身を含む): 515554200

約数和(自身を除く): 286625680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1609, 3218, 3557, 6436, 7114, 8045, 12872, 14228, 16090, 17785, 28456, 32180, 35570, 64360, 71140, 142280, 5723213, 11446426, 22892852, 28616065, 45785704, 57232130, 114464260, 228928520]

約数ペア:

[(1, 228928520), (2, 114464260), (4, 57232130), (5, 45785704), (8, 28616065), (10, 22892852), (20, 11446426), (40, 5723213), (1609, 142280), (3218, 71140), (3557, 64360), (6436, 35570), (7114, 32180), (8045, 28456), (12872, 17785), (14228, 16090)]