72479420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278767}}^1$

素因数の和:278789

約数の個数: 24

約数和(自身を含む): 163915584

約数和(自身を除く): 91436164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 278767, 557534, 1115068, 1393835, 2787670, 3623971, 5575340, 7247942, 14495884, 18119855, 36239710, 72479420]

約数ペア:

[(1, 72479420), (2, 36239710), (4, 18119855), (5, 14495884), (10, 7247942), (13, 5575340), (20, 3623971), (26, 2787670), (52, 1393835), (65, 1115068), (130, 557534), (260, 278767)]