80541820

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{10973}}^1$

素因数の和:11349

約数の個数: 24

約数和(自身を含む): 169614144

約数和(自身を除く): 89072324

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 7340, 10973, 21946, 43892, 54865, 109730, 219460, 4027091, 8054182, 16108364, 20135455, 40270910, 80541820]

約数ペア:

[(1, 80541820), (2, 40270910), (4, 20135455), (5, 16108364), (10, 8054182), (20, 4027091), (367, 219460), (734, 109730), (1468, 54865), (1835, 43892), (3670, 21946), (7340, 10973)]