19990440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55529}}^1$

素因数の和:55546

約数の個数: 48

約数和(自身を含む): 64970100

約数和(自身を除く): 44979660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55529, 111058, 166587, 222116, 277645, 333174, 444232, 499761, 555290, 666348, 832935, 999522, 1110580, 1332696, 1665870, 1999044, 2221160, 2498805, 3331740, 3998088, 4997610, 6663480, 9995220, 19990440]

約数ペア:

[(1, 19990440), (2, 9995220), (3, 6663480), (4, 4997610), (5, 3998088), (6, 3331740), (8, 2498805), (9, 2221160), (10, 1999044), (12, 1665870), (15, 1332696), (18, 1110580), (20, 999522), (24, 832935), (30, 666348), (36, 555290), (40, 499761), (45, 444232), (60, 333174), (72, 277645), (90, 222116), (120, 166587), (180, 111058), (360, 55529)]