77940820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{125711}}^1$

素因数の和:125751

約数の個数: 24

約数和(自身を含む): 168956928

約数和(自身を除く): 91016108

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 125711, 251422, 502844, 628555, 1257110, 2514220, 3897041, 7794082, 15588164, 19485205, 38970410, 77940820]

約数ペア:

[(1, 77940820), (2, 38970410), (4, 19485205), (5, 15588164), (10, 7794082), (20, 3897041), (31, 2514220), (62, 1257110), (124, 628555), (155, 502844), (310, 251422), (620, 125711)]