1391000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 3538080

約数和(自身を除く): 2147080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 107, 125, 130, 200, 214, 250, 260, 325, 428, 500, 520, 535, 650, 856, 1000, 1070, 1300, 1391, 1625, 2140, 2600, 2675, 2782, 3250, 4280, 5350, 5564, 6500, 6955, 10700, 11128, 13000, 13375, 13910, 21400, 26750, 27820, 34775, 53500, 55640, 69550, 107000, 139100, 173875, 278200, 347750, 695500, 1391000]

約数ペア:

[(1, 1391000), (2, 695500), (4, 347750), (5, 278200), (8, 173875), (10, 139100), (13, 107000), (20, 69550), (25, 55640), (26, 53500), (40, 34775), (50, 27820), (52, 26750), (65, 21400), (100, 13910), (104, 13375), (107, 13000), (125, 11128), (130, 10700), (200, 6955), (214, 6500), (250, 5564), (260, 5350), (325, 4280), (428, 3250), (500, 2782), (520, 2675), (535, 2600), (650, 2140), (856, 1625), (1000, 1391), (1070, 1300)]