179898680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{997}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 437603040

約数和(自身を除く): 257704360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 347, 520, 694, 997, 1388, 1735, 1994, 2776, 3470, 3988, 4511, 4985, 6940, 7976, 9022, 9970, 12961, 13880, 18044, 19940, 22555, 25922, 36088, 39880, 45110, 51844, 64805, 90220, 103688, 129610, 180440, 259220, 345959, 518440, 691918, 1383836, 1729795, 2767672, 3459590, 4497467, 6919180, 8994934, 13838360, 17989868, 22487335, 35979736, 44974670, 89949340, 179898680]

約数ペア:

[(1, 179898680), (2, 89949340), (4, 44974670), (5, 35979736), (8, 22487335), (10, 17989868), (13, 13838360), (20, 8994934), (26, 6919180), (40, 4497467), (52, 3459590), (65, 2767672), (104, 1729795), (130, 1383836), (260, 691918), (347, 518440), (520, 345959), (694, 259220), (997, 180440), (1388, 129610), (1735, 103688), (1994, 90220), (2776, 64805), (3470, 51844), (3988, 45110), (4511, 39880), (4985, 36088), (6940, 25922), (7976, 22555), (9022, 19940), (9970, 18044), (12961, 13880)]