240252640

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21149}}^1$

素因数の和:21235

約数の個数: 48

約数和(自身を含む): 575618400

約数和(自身を除く): 335365760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 21149, 42298, 84596, 105745, 169192, 211490, 338384, 422980, 676768, 845960, 1501579, 1691920, 3003158, 3383840, 6006316, 7507895, 12012632, 15015790, 24025264, 30031580, 48050528, 60063160, 120126320, 240252640]

約数ペア:

[(1, 240252640), (2, 120126320), (4, 60063160), (5, 48050528), (8, 30031580), (10, 24025264), (16, 15015790), (20, 12012632), (32, 7507895), (40, 6006316), (71, 3383840), (80, 3003158), (142, 1691920), (160, 1501579), (284, 845960), (355, 676768), (568, 422980), (710, 338384), (1136, 211490), (1420, 169192), (2272, 105745), (2840, 84596), (5680, 42298), (11360, 21149)]