280061409

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{421}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 404471808

約数和(自身を除く): 124410399

約数列:

[1, 3, 23, 31, 69, 93, 311, 421, 713, 933, 1263, 2139, 7153, 9641, 9683, 13051, 21459, 28923, 29049, 39153, 130931, 221743, 300173, 392793, 665229, 900519, 3011413, 4058861, 9034239, 12176583, 93353803, 280061409]

約数ペア:

[(1, 280061409), (3, 93353803), (23, 12176583), (31, 9034239), (69, 4058861), (93, 3011413), (311, 900519), (421, 665229), (713, 392793), (933, 300173), (1263, 221743), (2139, 130931), (7153, 39153), (9641, 29049), (9683, 28923), (13051, 21459)]