253187720

素因数分解:

$2^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{7691}}^1$

素因数の和:8525

約数の個数: 32

約数和(自身を含む): 570438720

約数和(自身を除く): 317251000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 823, 1646, 3292, 4115, 6584, 7691, 8230, 15382, 16460, 30764, 32920, 38455, 61528, 76910, 153820, 307640, 6329693, 12659386, 25318772, 31648465, 50637544, 63296930, 126593860, 253187720]

約数ペア:

[(1, 253187720), (2, 126593860), (4, 63296930), (5, 50637544), (8, 31648465), (10, 25318772), (20, 12659386), (40, 6329693), (823, 307640), (1646, 153820), (3292, 76910), (4115, 61528), (6584, 38455), (7691, 32920), (8230, 30764), (15382, 16460)]