78651560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151253}}^1$

素因数の和:151277

約数の個数: 32

約数和(自身を含む): 190580040

約数和(自身を除く): 111928480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151253, 302506, 605012, 756265, 1210024, 1512530, 1966289, 3025060, 3932578, 6050120, 7865156, 9831445, 15730312, 19662890, 39325780, 78651560]

約数ペア:

[(1, 78651560), (2, 39325780), (4, 19662890), (5, 15730312), (8, 9831445), (10, 7865156), (13, 6050120), (20, 3932578), (26, 3025060), (40, 1966289), (52, 1512530), (65, 1210024), (104, 756265), (130, 605012), (260, 302506), (520, 151253)]