15725580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20161}}^1$

素因数の和:20186

約数の個数: 48

約数和(自身を含む): 47421024

約数和(自身を除く): 31695444

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, 20161, 40322, 60483, 80644, 100805, 120966, 201610, 241932, 262093, 302415, 403220, 524186, 604830, 786279, 1048372, 1209660, 1310465, 1572558, 2620930, 3145116, 3931395, 5241860, 7862790, 15725580]

約数ペア:

[(1, 15725580), (2, 7862790), (3, 5241860), (4, 3931395), (5, 3145116), (6, 2620930), (10, 1572558), (12, 1310465), (13, 1209660), (15, 1048372), (20, 786279), (26, 604830), (30, 524186), (39, 403220), (52, 302415), (60, 262093), (65, 241932), (78, 201610), (130, 120966), (156, 100805), (195, 80644), (260, 60483), (390, 40322), (780, 20161)]