20353850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1609}}^1$

素因数の和:1655

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 22768390

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1609, 2530, 3218, 6325, 8045, 12650, 16090, 17699, 35398, 37007, 40225, 74014, 80450, 88495, 176990, 185035, 370070, 407077, 442475, 814154, 884950, 925175, 1850350, 2035385, 4070770, 10176925, 20353850]

約数ペア:

[(1, 20353850), (2, 10176925), (5, 4070770), (10, 2035385), (11, 1850350), (22, 925175), (23, 884950), (25, 814154), (46, 442475), (50, 407077), (55, 370070), (110, 185035), (115, 176990), (230, 88495), (253, 80450), (275, 74014), (506, 40225), (550, 37007), (575, 35398), (1150, 17699), (1265, 16090), (1609, 12650), (2530, 8045), (3218, 6325)]