28196794550

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1999}}^1\times {\mathrm{3571}}^1$

素因数の和:5661

約数の個数: 48

約数和(自身を含む): 53151360000

約数和(自身を除く): 24954565450

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 1999, 3571, 3950, 3998, 7142, 9995, 17855, 19990, 35710, 49975, 89275, 99950, 157921, 178550, 282109, 315842, 564218, 789605, 1410545, 1579210, 2821090, 3948025, 7052725, 7138429, 7896050, 14105450, 14276858, 35692145, 71384290, 178460725, 356921450, 563935891, 1127871782, 2819679455, 5639358910, 14098397275, 28196794550]

約数ペア:

[(1, 28196794550), (2, 14098397275), (5, 5639358910), (10, 2819679455), (25, 1127871782), (50, 563935891), (79, 356921450), (158, 178460725), (395, 71384290), (790, 35692145), (1975, 14276858), (1999, 14105450), (3571, 7896050), (3950, 7138429), (3998, 7052725), (7142, 3948025), (9995, 2821090), (17855, 1579210), (19990, 1410545), (35710, 789605), (49975, 564218), (89275, 315842), (99950, 282109), (157921, 178550)]