20480350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1665

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 22909730

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1619, 2530, 3238, 6325, 8095, 12650, 16190, 17809, 35618, 37237, 40475, 74474, 80950, 89045, 178090, 186185, 372370, 409607, 445225, 819214, 890450, 930925, 1861850, 2048035, 4096070, 10240175, 20480350]

約数ペア:

[(1, 20480350), (2, 10240175), (5, 4096070), (10, 2048035), (11, 1861850), (22, 930925), (23, 890450), (25, 819214), (46, 445225), (50, 409607), (55, 372370), (110, 186185), (115, 178090), (230, 89045), (253, 80950), (275, 74474), (506, 40475), (550, 37237), (575, 35618), (1150, 17809), (1265, 16190), (1619, 12650), (2530, 8095), (3238, 6325)]