19422640

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2269}}^1$

素因数の和:2389

約数の個数: 40

約数和(自身を含む): 45599760

約数和(自身を除く): 26177120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2269, 4280, 4538, 8560, 9076, 11345, 18152, 22690, 36304, 45380, 90760, 181520, 242783, 485566, 971132, 1213915, 1942264, 2427830, 3884528, 4855660, 9711320, 19422640]

約数ペア:

[(1, 19422640), (2, 9711320), (4, 4855660), (5, 3884528), (8, 2427830), (10, 1942264), (16, 1213915), (20, 971132), (40, 485566), (80, 242783), (107, 181520), (214, 90760), (428, 45380), (535, 36304), (856, 22690), (1070, 18152), (1712, 11345), (2140, 9076), (2269, 8560), (4280, 4538)]