2151775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 2906064

約数和(自身を除く): 754289

約数列:

[1, 5, 17, 25, 61, 83, 85, 305, 415, 425, 1037, 1411, 1525, 2075, 5063, 5185, 7055, 25315, 25925, 35275, 86071, 126575, 430355, 2151775]

約数ペア:

[(1, 2151775), (5, 430355), (17, 126575), (25, 86071), (61, 35275), (83, 25925), (85, 25315), (305, 7055), (415, 5185), (425, 5063), (1037, 2075), (1411, 1525)]