20218980100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1423}}^1\times {\mathrm{12917}}^1$

素因数の和:14365

約数の個数: 72

約数和(自身を含む): 47901184128

約数和(自身を除く): 27682204028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 1423, 2846, 5692, 7115, 12917, 14230, 15653, 25834, 28460, 31306, 35575, 51668, 62612, 64585, 71150, 78265, 129170, 142087, 142300, 156530, 258340, 284174, 313060, 322925, 391325, 568348, 645850, 710435, 782650, 1291700, 1420870, 1565300, 2841740, 3552175, 7104350, 14208700, 18380891, 36761782, 73523564, 91904455, 183808910, 202189801, 367617820, 404379602, 459522275, 808759204, 919044550, 1010949005, 1838089100, 2021898010, 4043796020, 5054745025, 10109490050, 20218980100]

約数ペア:

[(1, 20218980100), (2, 10109490050), (4, 5054745025), (5, 4043796020), (10, 2021898010), (11, 1838089100), (20, 1010949005), (22, 919044550), (25, 808759204), (44, 459522275), (50, 404379602), (55, 367617820), (100, 202189801), (110, 183808910), (220, 91904455), (275, 73523564), (550, 36761782), (1100, 18380891), (1423, 14208700), (2846, 7104350), (5692, 3552175), (7115, 2841740), (12917, 1565300), (14230, 1420870), (15653, 1291700), (25834, 782650), (28460, 710435), (31306, 645850), (35575, 568348), (51668, 391325), (62612, 322925), (64585, 313060), (71150, 284174), (78265, 258340), (129170, 156530), (142087, 142300)]