15728715

素因数分解:

$3^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{443}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 28131840

約数和(自身を除く): 12403125

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 263, 443, 789, 1315, 1329, 2215, 2367, 3945, 3987, 6645, 7101, 11835, 11961, 19935, 35505, 59805, 116509, 349527, 582545, 1048581, 1747635, 3145743, 5242905, 15728715]

約数ペア:

[(1, 15728715), (3, 5242905), (5, 3145743), (9, 1747635), (15, 1048581), (27, 582545), (45, 349527), (135, 116509), (263, 59805), (443, 35505), (789, 19935), (1315, 11961), (1329, 11835), (2215, 7101), (2367, 6645), (3945, 3987)]