172868720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8609}}^1$

素因数の和:8873

約数の個数: 40

約数和(自身を含む): 403567920

約数和(自身を除く): 230699200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 8609, 10040, 17218, 20080, 34436, 43045, 68872, 86090, 137744, 172180, 344360, 688720, 2160859, 4321718, 8643436, 10804295, 17286872, 21608590, 34573744, 43217180, 86434360, 172868720]

約数ペア:

[(1, 172868720), (2, 86434360), (4, 43217180), (5, 34573744), (8, 21608590), (10, 17286872), (16, 10804295), (20, 8643436), (40, 4321718), (80, 2160859), (251, 688720), (502, 344360), (1004, 172180), (1255, 137744), (2008, 86090), (2510, 68872), (4016, 43045), (5020, 34436), (8609, 20080), (10040, 17218)]