289208680

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{31573}}^1$

素因数の和:31813

約数の個数: 32

約数和(自身を含む): 653581800

約数和(自身を除く): 364373120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 31573, 63146, 126292, 157865, 252584, 315730, 631460, 1262920, 7230217, 14460434, 28920868, 36151085, 57841736, 72302170, 144604340, 289208680]

約数ペア:

[(1, 289208680), (2, 144604340), (4, 72302170), (5, 57841736), (8, 36151085), (10, 28920868), (20, 14460434), (40, 7230217), (229, 1262920), (458, 631460), (916, 315730), (1145, 252584), (1832, 157865), (2290, 126292), (4580, 63146), (9160, 31573)]