2820375

素因数分解:

$3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 5353920

約数和(自身を除く): 2533545

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 109, 115, 125, 207, 225, 327, 345, 375, 545, 575, 981, 1035, 1125, 1635, 1725, 2507, 2725, 2875, 4905, 5175, 7521, 8175, 8625, 12535, 13625, 22563, 24525, 25875, 37605, 40875, 62675, 112815, 122625, 188025, 313375, 564075, 940125, 2820375]

約数ペア:

[(1, 2820375), (3, 940125), (5, 564075), (9, 313375), (15, 188025), (23, 122625), (25, 112815), (45, 62675), (69, 40875), (75, 37605), (109, 25875), (115, 24525), (125, 22563), (207, 13625), (225, 12535), (327, 8625), (345, 8175), (375, 7521), (545, 5175), (575, 4905), (981, 2875), (1035, 2725), (1125, 2507), (1635, 1725)]