20702977240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1181}}^1\times {\mathrm{39841}}^1$

素因数の和:41044

約数の個数: 64

約数和(自身を含む): 50860703520

約数和(自身を除く): 30157726280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1181, 2362, 4724, 5905, 9448, 11810, 12991, 23620, 25982, 39841, 47240, 51964, 64955, 79682, 103928, 129910, 159364, 199205, 259820, 318728, 398410, 438251, 519640, 796820, 876502, 1593640, 1753004, 2191255, 3506008, 4382510, 8765020, 17530040, 47052221, 94104442, 188208884, 235261105, 376417768, 470522210, 517574431, 941044420, 1035148862, 1882088840, 2070297724, 2587872155, 4140595448, 5175744310, 10351488620, 20702977240]

約数ペア:

[(1, 20702977240), (2, 10351488620), (4, 5175744310), (5, 4140595448), (8, 2587872155), (10, 2070297724), (11, 1882088840), (20, 1035148862), (22, 941044420), (40, 517574431), (44, 470522210), (55, 376417768), (88, 235261105), (110, 188208884), (220, 94104442), (440, 47052221), (1181, 17530040), (2362, 8765020), (4724, 4382510), (5905, 3506008), (9448, 2191255), (11810, 1753004), (12991, 1593640), (23620, 876502), (25982, 796820), (39841, 519640), (47240, 438251), (51964, 398410), (64955, 318728), (79682, 259820), (103928, 199205), (129910, 159364)]