64616360

素因数分解:

$2^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1601}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 145621800

約数和(自身を除く): 81005440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009, 1601, 2018, 3202, 4036, 5045, 6404, 8005, 8072, 10090, 12808, 16010, 20180, 32020, 40360, 64040, 1615409, 3230818, 6461636, 8077045, 12923272, 16154090, 32308180, 64616360]

約数ペア:

[(1, 64616360), (2, 32308180), (4, 16154090), (5, 12923272), (8, 8077045), (10, 6461636), (20, 3230818), (40, 1615409), (1009, 64040), (1601, 40360), (2018, 32020), (3202, 20180), (4036, 16010), (5045, 12808), (6404, 10090), (8005, 8072)]