20068480

素因数分解:

$2^7\times 5^1\times {\mathrm{31357}}^1$

素因数の和:31376

約数の個数: 32

約数和(自身を含む): 47977740

約数和(自身を除く): 27909260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31357, 62714, 125428, 156785, 250856, 313570, 501712, 627140, 1003424, 1254280, 2006848, 2508560, 4013696, 5017120, 10034240, 20068480]

約数ペア:

[(1, 20068480), (2, 10034240), (4, 5017120), (5, 4013696), (8, 2508560), (10, 2006848), (16, 1254280), (20, 1003424), (32, 627140), (40, 501712), (64, 313570), (80, 250856), (128, 156785), (160, 125428), (320, 62714), (640, 31357)]