13273240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7717}}^1$

素因数の和:7771

約数の個数: 32

約数和(自身を含む): 30563280

約数和(自身を除く): 17290040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7717, 15434, 30868, 38585, 61736, 77170, 154340, 308680, 331831, 663662, 1327324, 1659155, 2654648, 3318310, 6636620, 13273240]

約数ペア:

[(1, 13273240), (2, 6636620), (4, 3318310), (5, 2654648), (8, 1659155), (10, 1327324), (20, 663662), (40, 331831), (43, 308680), (86, 154340), (172, 77170), (215, 61736), (344, 38585), (430, 30868), (860, 15434), (1720, 7717)]