31904180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20717}}^1$

素因数の和:20744

約数の個数: 48

約数和(自身を含む): 83534976

約数和(自身を除く): 51630796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20717, 41434, 82868, 103585, 145019, 207170, 227887, 290038, 414340, 455774, 580076, 725095, 911548, 1139435, 1450190, 1595209, 2278870, 2900380, 3190418, 4557740, 6380836, 7976045, 15952090, 31904180]

約数ペア:

[(1, 31904180), (2, 15952090), (4, 7976045), (5, 6380836), (7, 4557740), (10, 3190418), (11, 2900380), (14, 2278870), (20, 1595209), (22, 1450190), (28, 1139435), (35, 911548), (44, 725095), (55, 580076), (70, 455774), (77, 414340), (110, 290038), (140, 227887), (154, 207170), (220, 145019), (308, 103585), (385, 82868), (770, 41434), (1540, 20717)]