1396480

素因数分解:

$2^8\times 5^1\times {\mathrm{1091}}^1$

素因数の和:1112

約数の個数: 36

約数和(自身を含む): 3348072

約数和(自身を除く): 1951592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1091, 1280, 2182, 4364, 5455, 8728, 10910, 17456, 21820, 34912, 43640, 69824, 87280, 139648, 174560, 279296, 349120, 698240, 1396480]

約数ペア:

[(1, 1396480), (2, 698240), (4, 349120), (5, 279296), (8, 174560), (10, 139648), (16, 87280), (20, 69824), (32, 43640), (40, 34912), (64, 21820), (80, 17456), (128, 10910), (160, 8728), (256, 5455), (320, 4364), (640, 2182), (1091, 1280)]