8382740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 18522000

約数和(自身を除く): 10139260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 149, 194, 290, 298, 388, 485, 580, 596, 745, 970, 1490, 1940, 2813, 2980, 4321, 5626, 8642, 11252, 14065, 14453, 17284, 21605, 28130, 28906, 43210, 56260, 57812, 72265, 86420, 144530, 289060, 419137, 838274, 1676548, 2095685, 4191370, 8382740]

約数ペア:

[(1, 8382740), (2, 4191370), (4, 2095685), (5, 1676548), (10, 838274), (20, 419137), (29, 289060), (58, 144530), (97, 86420), (116, 72265), (145, 57812), (149, 56260), (194, 43210), (290, 28906), (298, 28130), (388, 21605), (485, 17284), (580, 14453), (596, 14065), (745, 11252), (970, 8642), (1490, 5626), (1940, 4321), (2813, 2980)]