20194740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{743}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 61746048

約数和(自身を除く): 41551308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 151, 180, 302, 453, 604, 743, 755, 906, 1359, 1486, 1510, 1812, 2229, 2265, 2718, 2972, 3020, 3715, 4458, 4530, 5436, 6687, 6795, 7430, 8916, 9060, 11145, 13374, 13590, 14860, 22290, 26748, 27180, 33435, 44580, 66870, 112193, 133740, 224386, 336579, 448772, 560965, 673158, 1009737, 1121930, 1346316, 1682895, 2019474, 2243860, 3365790, 4038948, 5048685, 6731580, 10097370, 20194740]

約数ペア:

[(1, 20194740), (2, 10097370), (3, 6731580), (4, 5048685), (5, 4038948), (6, 3365790), (9, 2243860), (10, 2019474), (12, 1682895), (15, 1346316), (18, 1121930), (20, 1009737), (30, 673158), (36, 560965), (45, 448772), (60, 336579), (90, 224386), (151, 133740), (180, 112193), (302, 66870), (453, 44580), (604, 33435), (743, 27180), (755, 26748), (906, 22290), (1359, 14860), (1486, 13590), (1510, 13374), (1812, 11145), (2229, 9060), (2265, 8916), (2718, 7430), (2972, 6795), (3020, 6687), (3715, 5436), (4458, 4530)]