18820760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67217}}^1$

素因数の和:67235

約数の個数: 32

約数和(自身を含む): 48396960

約数和(自身を除く): 29576200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67217, 134434, 268868, 336085, 470519, 537736, 672170, 941038, 1344340, 1882076, 2352595, 2688680, 3764152, 4705190, 9410380, 18820760]

約数ペア:

[(1, 18820760), (2, 9410380), (4, 4705190), (5, 3764152), (7, 2688680), (8, 2352595), (10, 1882076), (14, 1344340), (20, 941038), (28, 672170), (35, 537736), (40, 470519), (56, 336085), (70, 268868), (140, 134434), (280, 67217)]