18761260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4621}}^1$

素因数の和:4666

約数の個数: 48

約数和(自身を含む): 46589760

約数和(自身を除く): 27828500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4621, 9242, 18484, 23105, 32347, 46210, 64694, 92420, 129388, 134009, 161735, 268018, 323470, 536036, 646940, 670045, 938063, 1340090, 1876126, 2680180, 3752252, 4690315, 9380630, 18761260]

約数ペア:

[(1, 18761260), (2, 9380630), (4, 4690315), (5, 3752252), (7, 2680180), (10, 1876126), (14, 1340090), (20, 938063), (28, 670045), (29, 646940), (35, 536036), (58, 323470), (70, 268018), (116, 161735), (140, 134009), (145, 129388), (203, 92420), (290, 64694), (406, 46210), (580, 32347), (812, 23105), (1015, 18484), (2030, 9242), (4060, 4621)]