19328650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 39693888

約数和(自身を除く): 20365238

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 113, 226, 275, 311, 550, 565, 622, 1130, 1243, 1555, 2486, 2825, 3110, 3421, 5650, 6215, 6842, 7775, 12430, 15550, 17105, 31075, 34210, 35143, 62150, 70286, 85525, 171050, 175715, 351430, 386573, 773146, 878575, 1757150, 1932865, 3865730, 9664325, 19328650]

約数ペア:

[(1, 19328650), (2, 9664325), (5, 3865730), (10, 1932865), (11, 1757150), (22, 878575), (25, 773146), (50, 386573), (55, 351430), (110, 175715), (113, 171050), (226, 85525), (275, 70286), (311, 62150), (550, 35143), (565, 34210), (622, 31075), (1130, 17105), (1243, 15550), (1555, 12430), (2486, 7775), (2825, 6842), (3110, 6215), (3421, 5650)]