255389615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 343852992

約数和(自身を除く): 88463377

約数列:

[1, 5, 13, 41, 61, 65, 205, 305, 533, 793, 1571, 2501, 2665, 3965, 7855, 12505, 20423, 32513, 64411, 95831, 102115, 162565, 322055, 479155, 837343, 1245803, 3929071, 4186715, 6229015, 19645355, 51077923, 255389615]

約数ペア:

[(1, 255389615), (5, 51077923), (13, 19645355), (41, 6229015), (61, 4186715), (65, 3929071), (205, 1245803), (305, 837343), (533, 479155), (793, 322055), (1571, 162565), (2501, 102115), (2665, 95831), (3965, 64411), (7855, 32513), (12505, 20423)]