20565578920

素因数分解:

$2^3\times 5^1\times {\mathrm{983}}^1\times {\mathrm{523031}}^1$

素因数の和:524025

約数の個数: 32

約数和(自身を含む): 46319713920

約数和(自身を除く): 25754135000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 983, 1966, 3932, 4915, 7864, 9830, 19660, 39320, 523031, 1046062, 2092124, 2615155, 4184248, 5230310, 10460620, 20921240, 514139473, 1028278946, 2056557892, 2570697365, 4113115784, 5141394730, 10282789460, 20565578920]

約数ペア:

[(1, 20565578920), (2, 10282789460), (4, 5141394730), (5, 4113115784), (8, 2570697365), (10, 2056557892), (20, 1028278946), (40, 514139473), (983, 20921240), (1966, 10460620), (3932, 5230310), (4915, 4184248), (7864, 2615155), (9830, 2092124), (19660, 1046062), (39320, 523031)]