15131660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 32914560

約数和(自身を除く): 17782900

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 157, 158, 244, 305, 314, 316, 395, 610, 628, 785, 790, 1220, 1570, 1580, 3140, 4819, 9577, 9638, 12403, 19154, 19276, 24095, 24806, 38308, 47885, 48190, 49612, 62015, 95770, 96380, 124030, 191540, 248060, 756583, 1513166, 3026332, 3782915, 7565830, 15131660]

約数ペア:

[(1, 15131660), (2, 7565830), (4, 3782915), (5, 3026332), (10, 1513166), (20, 756583), (61, 248060), (79, 191540), (122, 124030), (157, 96380), (158, 95770), (244, 62015), (305, 49612), (314, 48190), (316, 47885), (395, 38308), (610, 24806), (628, 24095), (785, 19276), (790, 19154), (1220, 12403), (1570, 9638), (1580, 9577), (3140, 4819)]