31448560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2749}}^1$

素因数の和:2786

約数の個数: 80

約数和(自身を含む): 85932000

約数和(自身を除く): 54483440

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2749, 2860, 5498, 5720, 10996, 11440, 13745, 21992, 27490, 30239, 35737, 43984, 54980, 60478, 71474, 109960, 120956, 142948, 151195, 178685, 219920, 241912, 285896, 302390, 357370, 393107, 483824, 571792, 604780, 714740, 786214, 1209560, 1429480, 1572428, 1965535, 2419120, 2858960, 3144856, 3931070, 6289712, 7862140, 15724280, 31448560]

約数ペア:

[(1, 31448560), (2, 15724280), (4, 7862140), (5, 6289712), (8, 3931070), (10, 3144856), (11, 2858960), (13, 2419120), (16, 1965535), (20, 1572428), (22, 1429480), (26, 1209560), (40, 786214), (44, 714740), (52, 604780), (55, 571792), (65, 483824), (80, 393107), (88, 357370), (104, 302390), (110, 285896), (130, 241912), (143, 219920), (176, 178685), (208, 151195), (220, 142948), (260, 120956), (286, 109960), (440, 71474), (520, 60478), (572, 54980), (715, 43984), (880, 35737), (1040, 30239), (1144, 27490), (1430, 21992), (2288, 13745), (2749, 11440), (2860, 10996), (5498, 5720)]