77664920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{62633}}^1$

素因数の和:62675

約数の個数: 32

約数和(自身を含む): 180385920

約数和(自身を除く): 102721000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 62633, 125266, 250532, 313165, 501064, 626330, 1252660, 1941623, 2505320, 3883246, 7766492, 9708115, 15532984, 19416230, 38832460, 77664920]

約数ペア:

[(1, 77664920), (2, 38832460), (4, 19416230), (5, 15532984), (8, 9708115), (10, 7766492), (20, 3883246), (31, 2505320), (40, 1941623), (62, 1252660), (124, 626330), (155, 501064), (248, 313165), (310, 250532), (620, 125266), (1240, 62633)]