161251875

素因数分解:

$3^2\times 5^4\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 60

約数和(自身を含む): 294843120

約数和(自身を除く): 133591245

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 125, 225, 263, 327, 375, 545, 625, 789, 981, 1125, 1315, 1635, 1875, 2367, 2725, 3945, 4905, 5625, 6575, 8175, 11835, 13625, 19725, 24525, 28667, 32875, 40875, 59175, 68125, 86001, 98625, 122625, 143335, 164375, 204375, 258003, 295875, 430005, 493125, 613125, 716675, 1290015, 1479375, 2150025, 3583375, 6450075, 10750125, 17916875, 32250375, 53750625, 161251875]

約数ペア:

[(1, 161251875), (3, 53750625), (5, 32250375), (9, 17916875), (15, 10750125), (25, 6450075), (45, 3583375), (75, 2150025), (109, 1479375), (125, 1290015), (225, 716675), (263, 613125), (327, 493125), (375, 430005), (545, 295875), (625, 258003), (789, 204375), (981, 164375), (1125, 143335), (1315, 122625), (1635, 98625), (1875, 86001), (2367, 68125), (2725, 59175), (3945, 40875), (4905, 32875), (5625, 28667), (6575, 24525), (8175, 19725), (11835, 13625)]