2020127900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{3853}}^1$

素因数の和:3988

約数の個数: 108

約数和(自身を含む): 5148373608

約数和(自身を除く): 3128245708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 107, 140, 175, 196, 214, 245, 350, 428, 490, 535, 700, 749, 980, 1070, 1225, 1498, 2140, 2450, 2675, 2996, 3745, 3853, 4900, 5243, 5350, 7490, 7706, 10486, 10700, 14980, 15412, 18725, 19265, 20972, 26215, 26971, 37450, 38530, 52430, 53942, 74900, 77060, 96325, 104860, 107884, 131075, 134855, 188797, 192650, 262150, 269710, 377594, 385300, 412271, 524300, 539420, 674275, 755188, 824542, 943985, 1348550, 1649084, 1887970, 2061355, 2697100, 2885897, 3775940, 4122710, 4719925, 5771794, 8245420, 9439850, 10306775, 11543588, 14429485, 18879700, 20201279, 20613550, 28858970, 40402558, 41227100, 57717940, 72147425, 80805116, 101006395, 144294850, 202012790, 288589700, 404025580, 505031975, 1010063950, 2020127900]

約数ペア:

[(1, 2020127900), (2, 1010063950), (4, 505031975), (5, 404025580), (7, 288589700), (10, 202012790), (14, 144294850), (20, 101006395), (25, 80805116), (28, 72147425), (35, 57717940), (49, 41227100), (50, 40402558), (70, 28858970), (98, 20613550), (100, 20201279), (107, 18879700), (140, 14429485), (175, 11543588), (196, 10306775), (214, 9439850), (245, 8245420), (350, 5771794), (428, 4719925), (490, 4122710), (535, 3775940), (700, 2885897), (749, 2697100), (980, 2061355), (1070, 1887970), (1225, 1649084), (1498, 1348550), (2140, 943985), (2450, 824542), (2675, 755188), (2996, 674275), (3745, 539420), (3853, 524300), (4900, 412271), (5243, 385300), (5350, 377594), (7490, 269710), (7706, 262150), (10486, 192650), (10700, 188797), (14980, 134855), (15412, 131075), (18725, 107884), (19265, 104860), (20972, 96325), (26215, 77060), (26971, 74900), (37450, 53942), (38530, 52430)]