20953950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4817}}^1$

素因数の和:4861

約数の個数: 48

約数和(自身を含む): 53768880

約数和(自身を除く): 32814930

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 174, 290, 435, 725, 870, 1450, 2175, 4350, 4817, 9634, 14451, 24085, 28902, 48170, 72255, 120425, 139693, 144510, 240850, 279386, 361275, 419079, 698465, 722550, 838158, 1396930, 2095395, 3492325, 4190790, 6984650, 10476975, 20953950]

約数ペア:

[(1, 20953950), (2, 10476975), (3, 6984650), (5, 4190790), (6, 3492325), (10, 2095395), (15, 1396930), (25, 838158), (29, 722550), (30, 698465), (50, 419079), (58, 361275), (75, 279386), (87, 240850), (145, 144510), (150, 139693), (174, 120425), (290, 72255), (435, 48170), (725, 28902), (870, 24085), (1450, 14451), (2175, 9634), (4350, 4817)]