201888640

素因数分解:

$2^7\times 5^1\times {\mathrm{315451}}^1$

素因数の和:315470

約数の個数: 32

約数和(自身を含む): 482641560

約数和(自身を除く): 280752920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 315451, 630902, 1261804, 1577255, 2523608, 3154510, 5047216, 6309020, 10094432, 12618040, 20188864, 25236080, 40377728, 50472160, 100944320, 201888640]

約数ペア:

[(1, 201888640), (2, 100944320), (4, 50472160), (5, 40377728), (8, 25236080), (10, 20188864), (16, 12618040), (20, 10094432), (32, 6309020), (40, 5047216), (64, 3154510), (80, 2523608), (128, 1577255), (160, 1261804), (320, 630902), (640, 315451)]