28091245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{577}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 41948928

約数和(自身を除く): 13857683

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 455, 535, 577, 749, 1391, 2885, 3745, 4039, 6955, 7501, 9737, 20195, 37505, 48685, 52507, 61739, 262535, 308695, 432173, 802607, 2160865, 4013035, 5618249, 28091245]

約数ペア:

[(1, 28091245), (5, 5618249), (7, 4013035), (13, 2160865), (35, 802607), (65, 432173), (91, 308695), (107, 262535), (455, 61739), (535, 52507), (577, 48685), (749, 37505), (1391, 20195), (2885, 9737), (3745, 7501), (4039, 6955)]