40554020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2557}}^1$

素因数の和:2640

約数の個数: 48

約数和(自身を含む): 93254448

約数和(自身を除く): 52700428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 2557, 3172, 3965, 5114, 7930, 10228, 12785, 15860, 25570, 33241, 51140, 66482, 132964, 155977, 166205, 311954, 332410, 623908, 664820, 779885, 1559770, 2027701, 3119540, 4055402, 8110804, 10138505, 20277010, 40554020]

約数ペア:

[(1, 40554020), (2, 20277010), (4, 10138505), (5, 8110804), (10, 4055402), (13, 3119540), (20, 2027701), (26, 1559770), (52, 779885), (61, 664820), (65, 623908), (122, 332410), (130, 311954), (244, 166205), (260, 155977), (305, 132964), (610, 66482), (793, 51140), (1220, 33241), (1586, 25570), (2557, 15860), (3172, 12785), (3965, 10228), (5114, 7930)]