2019990455

素因数分解:

$5^1\times 7^3\times {\mathrm{439}}^1\times {\mathrm{2683}}^1$

素因数の和:3148

約数の個数: 32

約数和(自身を含む): 2834304000

約数和(自身を除く): 814313545

約数列:

[1, 5, 7, 35, 49, 245, 343, 439, 1715, 2195, 2683, 3073, 13415, 15365, 18781, 21511, 93905, 107555, 131467, 150577, 657335, 752885, 920269, 1177837, 4601345, 5889185, 8244859, 41224295, 57714013, 288570065, 403998091, 2019990455]

約数ペア:

[(1, 2019990455), (5, 403998091), (7, 288570065), (35, 57714013), (49, 41224295), (245, 8244859), (343, 5889185), (439, 4601345), (1715, 1177837), (2195, 920269), (2683, 752885), (3073, 657335), (13415, 150577), (15365, 131467), (18781, 107555), (21511, 93905)]