648208035

素因数分解:

$3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{60779}}^1$

素因数の和:60872

約数の個数: 32

約数和(自身を含む): 1166976000

約数和(自身を除く): 518767965

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 135, 237, 395, 711, 1185, 2133, 3555, 10665, 60779, 182337, 303895, 547011, 911685, 1641033, 2735055, 4801541, 8205165, 14404623, 24007705, 43213869, 72023115, 129641607, 216069345, 648208035]

約数ペア:

[(1, 648208035), (3, 216069345), (5, 129641607), (9, 72023115), (15, 43213869), (27, 24007705), (45, 14404623), (79, 8205165), (135, 4801541), (237, 2735055), (395, 1641033), (711, 911685), (1185, 547011), (2133, 303895), (3555, 182337), (10665, 60779)]