90958720

素因数分解:

$2^7\times 5^1\times {\mathrm{142123}}^1$

素因数の和:142142

約数の個数: 32

約数和(自身を含む): 217449720

約数和(自身を除く): 126491000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 142123, 284246, 568492, 710615, 1136984, 1421230, 2273968, 2842460, 4547936, 5684920, 9095872, 11369840, 18191744, 22739680, 45479360, 90958720]

約数ペア:

[(1, 90958720), (2, 45479360), (4, 22739680), (5, 18191744), (8, 11369840), (10, 9095872), (16, 5684920), (20, 4547936), (32, 2842460), (40, 2273968), (64, 1421230), (80, 1136984), (128, 710615), (160, 568492), (320, 284246), (640, 142123)]