178232720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31379}}^1$

素因数の和:31463

約数の個数: 40

約数和(自身を含む): 420240960

約数和(自身を除く): 242008240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 31379, 62758, 125516, 156895, 251032, 313790, 502064, 627580, 1255160, 2227909, 2510320, 4455818, 8911636, 11139545, 17823272, 22279090, 35646544, 44558180, 89116360, 178232720]

約数ペア:

[(1, 178232720), (2, 89116360), (4, 44558180), (5, 35646544), (8, 22279090), (10, 17823272), (16, 11139545), (20, 8911636), (40, 4455818), (71, 2510320), (80, 2227909), (142, 1255160), (284, 627580), (355, 502064), (568, 313790), (710, 251032), (1136, 156895), (1420, 125516), (2840, 62758), (5680, 31379)]