205212375

素因数分解:

$3^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{2309}}^1$

素因数の和:2409

約数の個数: 48

約数和(自身を含む): 374774400

約数和(自身を除く): 169562025

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 125, 225, 237, 375, 395, 711, 1125, 1185, 1975, 2309, 3555, 5925, 6927, 9875, 11545, 17775, 20781, 29625, 34635, 57725, 88875, 103905, 173175, 182411, 288625, 519525, 547233, 865875, 912055, 1641699, 2597625, 2736165, 4560275, 8208495, 13680825, 22801375, 41042475, 68404125, 205212375]

約数ペア:

[(1, 205212375), (3, 68404125), (5, 41042475), (9, 22801375), (15, 13680825), (25, 8208495), (45, 4560275), (75, 2736165), (79, 2597625), (125, 1641699), (225, 912055), (237, 865875), (375, 547233), (395, 519525), (711, 288625), (1125, 182411), (1185, 173175), (1975, 103905), (2309, 88875), (3555, 57725), (5925, 34635), (6927, 29625), (9875, 20781), (11545, 17775)]