8247980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31723}}^1$

素因数の和:31745

約数の個数: 24

約数和(自身を含む): 18653712

約数和(自身を除く): 10405732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31723, 63446, 126892, 158615, 317230, 412399, 634460, 824798, 1649596, 2061995, 4123990, 8247980]

約数ペア:

[(1, 8247980), (2, 4123990), (4, 2061995), (5, 1649596), (10, 824798), (13, 634460), (20, 412399), (26, 317230), (52, 158615), (65, 126892), (130, 63446), (260, 31723)]