556400

素因数分解:

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

素因数の和:138

約数の個数: 60

約数和(自身を含む): 1453032

約数和(自身を除く): 896632

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 107, 130, 200, 208, 214, 260, 325, 400, 428, 520, 535, 650, 856, 1040, 1070, 1300, 1391, 1712, 2140, 2600, 2675, 2782, 4280, 5200, 5350, 5564, 6955, 8560, 10700, 11128, 13910, 21400, 22256, 27820, 34775, 42800, 55640, 69550, 111280, 139100, 278200, 556400]

約数ペア:

[(1, 556400), (2, 278200), (4, 139100), (5, 111280), (8, 69550), (10, 55640), (13, 42800), (16, 34775), (20, 27820), (25, 22256), (26, 21400), (40, 13910), (50, 11128), (52, 10700), (65, 8560), (80, 6955), (100, 5564), (104, 5350), (107, 5200), (130, 4280), (200, 2782), (208, 2675), (214, 2600), (260, 2140), (325, 1712), (400, 1391), (428, 1300), (520, 1070), (535, 1040), (650, 856)]