90402560

素因数分解:

$2^8\times 5^1\times {\mathrm{70627}}^1$

素因数の和:70648

約数の個数: 36

約数和(自身を含む): 216545448

約数和(自身を除く): 126142888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 70627, 141254, 282508, 353135, 565016, 706270, 1130032, 1412540, 2260064, 2825080, 4520128, 5650160, 9040256, 11300320, 18080512, 22600640, 45201280, 90402560]

約数ペア:

[(1, 90402560), (2, 45201280), (4, 22600640), (5, 18080512), (8, 11300320), (10, 9040256), (16, 5650160), (20, 4520128), (32, 2825080), (40, 2260064), (64, 1412540), (80, 1130032), (128, 706270), (160, 565016), (256, 353135), (320, 282508), (640, 141254), (1280, 70627)]