81779720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8081}}^1$

素因数の和:8126

約数の個数: 64

約数和(自身を含む): 209485440

約数和(自身を除く): 127705720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 8081, 10120, 16162, 32324, 40405, 64648, 80810, 88891, 161620, 177782, 185863, 323240, 355564, 371726, 444455, 711128, 743452, 888910, 929315, 1486904, 1777820, 1858630, 2044493, 3555640, 3717260, 4088986, 7434520, 8177972, 10222465, 16355944, 20444930, 40889860, 81779720]

約数ペア:

[(1, 81779720), (2, 40889860), (4, 20444930), (5, 16355944), (8, 10222465), (10, 8177972), (11, 7434520), (20, 4088986), (22, 3717260), (23, 3555640), (40, 2044493), (44, 1858630), (46, 1777820), (55, 1486904), (88, 929315), (92, 888910), (110, 743452), (115, 711128), (184, 444455), (220, 371726), (230, 355564), (253, 323240), (440, 185863), (460, 177782), (506, 161620), (920, 88891), (1012, 80810), (1265, 64648), (2024, 40405), (2530, 32324), (5060, 16162), (8081, 10120)]