19089440

素因数分解:

$2^5\times 5^1\times {\mathrm{229}}^1\times {\mathrm{521}}^1$

素因数の和:765

約数の個数: 48

約数和(自身を含む): 45382680

約数和(自身を除く): 26293240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 229, 458, 521, 916, 1042, 1145, 1832, 2084, 2290, 2605, 3664, 4168, 4580, 5210, 7328, 8336, 9160, 10420, 16672, 18320, 20840, 36640, 41680, 83360, 119309, 238618, 477236, 596545, 954472, 1193090, 1908944, 2386180, 3817888, 4772360, 9544720, 19089440]

約数ペア:

[(1, 19089440), (2, 9544720), (4, 4772360), (5, 3817888), (8, 2386180), (10, 1908944), (16, 1193090), (20, 954472), (32, 596545), (40, 477236), (80, 238618), (160, 119309), (229, 83360), (458, 41680), (521, 36640), (916, 20840), (1042, 18320), (1145, 16672), (1832, 10420), (2084, 9160), (2290, 8336), (2605, 7328), (3664, 5210), (4168, 4580)]