15985640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{773}}^1$

素因数の和:842

約数の個数: 64

約数和(自身を含む): 40124160

約数和(自身を除く): 24138520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 773, 940, 1034, 1546, 1880, 2068, 2585, 3092, 3865, 4136, 5170, 6184, 7730, 8503, 10340, 15460, 17006, 20680, 30920, 34012, 36331, 42515, 68024, 72662, 85030, 145324, 170060, 181655, 290648, 340120, 363310, 399641, 726620, 799282, 1453240, 1598564, 1998205, 3197128, 3996410, 7992820, 15985640]

約数ペア:

[(1, 15985640), (2, 7992820), (4, 3996410), (5, 3197128), (8, 1998205), (10, 1598564), (11, 1453240), (20, 799282), (22, 726620), (40, 399641), (44, 363310), (47, 340120), (55, 290648), (88, 181655), (94, 170060), (110, 145324), (188, 85030), (220, 72662), (235, 68024), (376, 42515), (440, 36331), (470, 34012), (517, 30920), (773, 20680), (940, 17006), (1034, 15460), (1546, 10340), (1880, 8503), (2068, 7730), (2585, 6184), (3092, 5170), (3865, 4136)]