1651000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 4193280

約数和(自身を除く): 2542280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 127, 130, 200, 250, 254, 260, 325, 500, 508, 520, 635, 650, 1000, 1016, 1270, 1300, 1625, 1651, 2540, 2600, 3175, 3250, 3302, 5080, 6350, 6500, 6604, 8255, 12700, 13000, 13208, 15875, 16510, 25400, 31750, 33020, 41275, 63500, 66040, 82550, 127000, 165100, 206375, 330200, 412750, 825500, 1651000]

約数ペア:

[(1, 1651000), (2, 825500), (4, 412750), (5, 330200), (8, 206375), (10, 165100), (13, 127000), (20, 82550), (25, 66040), (26, 63500), (40, 41275), (50, 33020), (52, 31750), (65, 25400), (100, 16510), (104, 15875), (125, 13208), (127, 13000), (130, 12700), (200, 8255), (250, 6604), (254, 6500), (260, 6350), (325, 5080), (500, 3302), (508, 3250), (520, 3175), (635, 2600), (650, 2540), (1000, 1651), (1016, 1625), (1270, 1300)]