15491580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19861}}^1$

素因数の和:19886

約数の個数: 48

約数和(自身を含む): 46715424

約数和(自身を除く): 31223844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 19861, 39722, 59583, 79444, 99305, 119166, 198610, 238332, 258193, 297915, 397220, 516386, 595830, 774579, 1032772, 1191660, 1290965, 1549158, 2581930, 3098316, 3872895, 5163860, 7745790, 15491580]

約数ペア:

[(1, 15491580), (2, 7745790), (3, 5163860), (4, 3872895), (5, 3098316), (6, 2581930), (10, 1549158), (12, 1290965), (13, 1191660), (15, 1032772), (20, 774579), (26, 595830), (30, 516386), (39, 397220), (52, 297915), (60, 258193), (65, 238332), (78, 198610), (130, 119166), (156, 99305), (195, 79444), (260, 59583), (390, 39722), (780, 19861)]