20854865655

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{367519}}^1$

素因数の和:367640

約数の個数: 48

約数和(自身を含む): 39330520320

約数和(自身を除く): 18475654665

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 97, 117, 195, 291, 485, 585, 873, 1261, 1455, 3783, 4365, 6305, 11349, 18915, 56745, 367519, 1102557, 1837595, 3307671, 4777747, 5512785, 14333241, 16538355, 23888735, 35649343, 42999723, 71666205, 106948029, 178246715, 214998615, 320844087, 463441459, 534740145, 1390324377, 1604220435, 2317207295, 4170973131, 6951621885, 20854865655]

約数ペア:

[(1, 20854865655), (3, 6951621885), (5, 4170973131), (9, 2317207295), (13, 1604220435), (15, 1390324377), (39, 534740145), (45, 463441459), (65, 320844087), (97, 214998615), (117, 178246715), (195, 106948029), (291, 71666205), (485, 42999723), (585, 35649343), (873, 23888735), (1261, 16538355), (1455, 14333241), (3783, 5512785), (4365, 4777747), (6305, 3307671), (11349, 1837595), (18915, 1102557), (56745, 367519)]