255979875

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1045

約数の個数: 64

約数和(自身を含む): 460961280

約数和(自身を除く): 204981405

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 95, 111, 125, 185, 285, 375, 475, 555, 703, 925, 971, 1425, 2109, 2375, 2775, 2913, 3515, 4625, 4855, 7125, 10545, 13875, 14565, 17575, 18449, 24275, 35927, 52725, 55347, 72825, 87875, 92245, 107781, 121375, 179635, 263625, 276735, 364125, 461225, 538905, 682613, 898175, 1383675, 2047839, 2306125, 2694525, 3413065, 4490875, 6918375, 10239195, 13472625, 17065325, 51195975, 85326625, 255979875]

約数ペア:

[(1, 255979875), (3, 85326625), (5, 51195975), (15, 17065325), (19, 13472625), (25, 10239195), (37, 6918375), (57, 4490875), (75, 3413065), (95, 2694525), (111, 2306125), (125, 2047839), (185, 1383675), (285, 898175), (375, 682613), (475, 538905), (555, 461225), (703, 364125), (925, 276735), (971, 263625), (1425, 179635), (2109, 121375), (2375, 107781), (2775, 92245), (2913, 87875), (3515, 72825), (4625, 55347), (4855, 52725), (7125, 35927), (10545, 24275), (13875, 18449), (14565, 17575)]