388845660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{925823}}^1$

素因数の和:925842

約数の個数: 48

約数和(自身を含む): 1244307456

約数和(自身を除く): 855461796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 925823, 1851646, 2777469, 3703292, 4629115, 5554938, 6480761, 9258230, 11109876, 12961522, 13887345, 18516460, 19442283, 25923044, 27774690, 32403805, 38884566, 55549380, 64807610, 77769132, 97211415, 129615220, 194422830, 388845660]

約数ペア:

[(1, 388845660), (2, 194422830), (3, 129615220), (4, 97211415), (5, 77769132), (6, 64807610), (7, 55549380), (10, 38884566), (12, 32403805), (14, 27774690), (15, 25923044), (20, 19442283), (21, 18516460), (28, 13887345), (30, 12961522), (35, 11109876), (42, 9258230), (60, 6480761), (70, 5554938), (84, 4629115), (105, 3703292), (140, 2777469), (210, 1851646), (420, 925823)]