18313880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{859}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 45511200

約数和(自身を除く): 27197320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 859, 1066, 1640, 1718, 2132, 2665, 3436, 4264, 4295, 5330, 6872, 8590, 10660, 11167, 17180, 21320, 22334, 34360, 35219, 44668, 55835, 70438, 89336, 111670, 140876, 176095, 223340, 281752, 352190, 446680, 457847, 704380, 915694, 1408760, 1831388, 2289235, 3662776, 4578470, 9156940, 18313880]

約数ペア:

[(1, 18313880), (2, 9156940), (4, 4578470), (5, 3662776), (8, 2289235), (10, 1831388), (13, 1408760), (20, 915694), (26, 704380), (40, 457847), (41, 446680), (52, 352190), (65, 281752), (82, 223340), (104, 176095), (130, 140876), (164, 111670), (205, 89336), (260, 70438), (328, 55835), (410, 44668), (520, 35219), (533, 34360), (820, 22334), (859, 21320), (1066, 17180), (1640, 11167), (1718, 10660), (2132, 8590), (2665, 6872), (3436, 5330), (4264, 4295)]