7971190420

素因数分解:

$2^2\times 5^1\times {\mathrm{7643}}^1\times {\mathrm{52147}}^1$

素因数の和:59799

約数の個数: 24

約数和(自身を含む): 16742011104

約数和(自身を除く): 8770820684

約数列:

[1, 2, 4, 5, 10, 20, 7643, 15286, 30572, 38215, 52147, 76430, 104294, 152860, 208588, 260735, 521470, 1042940, 398559521, 797119042, 1594238084, 1992797605, 3985595210, 7971190420]

約数ペア:

[(1, 7971190420), (2, 3985595210), (4, 1992797605), (5, 1594238084), (10, 797119042), (20, 398559521), (7643, 1042940), (15286, 521470), (30572, 260735), (38215, 208588), (52147, 152860), (76430, 104294)]