40839760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{367}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 103493376

約数和(自身を除く): 62653616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 107, 130, 208, 214, 260, 367, 428, 520, 535, 734, 856, 1040, 1070, 1391, 1468, 1712, 1835, 2140, 2782, 2936, 3670, 4280, 4771, 5564, 5872, 6955, 7340, 8560, 9542, 11128, 13910, 14680, 19084, 22256, 23855, 27820, 29360, 38168, 39269, 47710, 55640, 76336, 78538, 95420, 111280, 157076, 190840, 196345, 314152, 381680, 392690, 510497, 628304, 785380, 1020994, 1570760, 2041988, 2552485, 3141520, 4083976, 5104970, 8167952, 10209940, 20419880, 40839760]

約数ペア:

[(1, 40839760), (2, 20419880), (4, 10209940), (5, 8167952), (8, 5104970), (10, 4083976), (13, 3141520), (16, 2552485), (20, 2041988), (26, 1570760), (40, 1020994), (52, 785380), (65, 628304), (80, 510497), (104, 392690), (107, 381680), (130, 314152), (208, 196345), (214, 190840), (260, 157076), (367, 111280), (428, 95420), (520, 78538), (535, 76336), (734, 55640), (856, 47710), (1040, 39269), (1070, 38168), (1391, 29360), (1468, 27820), (1712, 23855), (1835, 22256), (2140, 19084), (2782, 14680), (2936, 13910), (3670, 11128), (4280, 9542), (4771, 8560), (5564, 7340), (5872, 6955)]