64435905

素因数分解:

$3^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:815

約数の個数: 40

約数和(自身を含む): 116087400

約数和(自身を除く): 51651495

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 389, 405, 409, 1167, 1227, 1945, 2045, 3501, 3681, 5835, 6135, 10503, 11043, 17505, 18405, 31509, 33129, 52515, 55215, 157545, 159101, 165645, 477303, 795505, 1431909, 2386515, 4295727, 7159545, 12887181, 21478635, 64435905]

約数ペア:

[(1, 64435905), (3, 21478635), (5, 12887181), (9, 7159545), (15, 4295727), (27, 2386515), (45, 1431909), (81, 795505), (135, 477303), (389, 165645), (405, 159101), (409, 157545), (1167, 55215), (1227, 52515), (1945, 33129), (2045, 31509), (3501, 18405), (3681, 17505), (5835, 11043), (6135, 10503)]