78756680

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{24923}}^1$

素因数の和:25013

約数の個数: 32

約数和(自身を含む): 179452800

約数和(自身を除く): 100696120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 24923, 49846, 99692, 124615, 199384, 249230, 498460, 996920, 1968917, 3937834, 7875668, 9844585, 15751336, 19689170, 39378340, 78756680]

約数ペア:

[(1, 78756680), (2, 39378340), (4, 19689170), (5, 15751336), (8, 9844585), (10, 7875668), (20, 3937834), (40, 1968917), (79, 996920), (158, 498460), (316, 249230), (395, 199384), (632, 124615), (790, 99692), (1580, 49846), (3160, 24923)]