56780620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 131153904

約数和(自身を除く): 74373284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 157, 169, 214, 260, 314, 338, 428, 535, 628, 676, 785, 845, 1070, 1391, 1570, 1690, 2041, 2140, 2782, 3140, 3380, 4082, 5564, 6955, 8164, 10205, 13910, 16799, 18083, 20410, 26533, 27820, 33598, 36166, 40820, 53066, 67196, 72332, 83995, 90415, 106132, 132665, 167990, 180830, 218387, 265330, 335980, 361660, 436774, 530660, 873548, 1091935, 2183870, 2839031, 4367740, 5678062, 11356124, 14195155, 28390310, 56780620]

約数ペア:

[(1, 56780620), (2, 28390310), (4, 14195155), (5, 11356124), (10, 5678062), (13, 4367740), (20, 2839031), (26, 2183870), (52, 1091935), (65, 873548), (107, 530660), (130, 436774), (157, 361660), (169, 335980), (214, 265330), (260, 218387), (314, 180830), (338, 167990), (428, 132665), (535, 106132), (628, 90415), (676, 83995), (785, 72332), (845, 67196), (1070, 53066), (1391, 40820), (1570, 36166), (1690, 33598), (2041, 27820), (2140, 26533), (2782, 20410), (3140, 18083), (3380, 16799), (4082, 13910), (5564, 10205), (6955, 8164)]