698240

素因数分解:

$2^7\times 5^1\times {\mathrm{1091}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 1670760

約数和(自身を除く): 972520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1091, 2182, 4364, 5455, 8728, 10910, 17456, 21820, 34912, 43640, 69824, 87280, 139648, 174560, 349120, 698240]

約数ペア:

[(1, 698240), (2, 349120), (4, 174560), (5, 139648), (8, 87280), (10, 69824), (16, 43640), (20, 34912), (32, 21820), (40, 17456), (64, 10910), (80, 8728), (128, 5455), (160, 4364), (320, 2182), (640, 1091)]