71218305

素因数分解:

$3^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{823}}^1$

素因数の和:1478

約数の個数: 32

約数和(自身を含む): 126961920

約数和(自身を除く): 55743615

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 641, 823, 1923, 2469, 3205, 4115, 5769, 7407, 9615, 12345, 17307, 22221, 28845, 37035, 86535, 111105, 527543, 1582629, 2637715, 4747887, 7913145, 14243661, 23739435, 71218305]

約数ペア:

[(1, 71218305), (3, 23739435), (5, 14243661), (9, 7913145), (15, 4747887), (27, 2637715), (45, 1582629), (135, 527543), (641, 111105), (823, 86535), (1923, 37035), (2469, 28845), (3205, 22221), (4115, 17307), (5769, 12345), (7407, 9615)]