72220280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1087}}^1$

素因数の和:1260

約数の個数: 64

約数和(自身を含む): 178606080

約数和(自身を除く): 106385800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 151, 220, 302, 440, 604, 755, 1087, 1208, 1510, 1661, 2174, 3020, 3322, 4348, 5435, 6040, 6644, 8305, 8696, 10870, 11957, 13288, 16610, 21740, 23914, 33220, 43480, 47828, 59785, 66440, 95656, 119570, 164137, 239140, 328274, 478280, 656548, 820685, 1313096, 1641370, 1805507, 3282740, 3611014, 6565480, 7222028, 9027535, 14444056, 18055070, 36110140, 72220280]

約数ペア:

[(1, 72220280), (2, 36110140), (4, 18055070), (5, 14444056), (8, 9027535), (10, 7222028), (11, 6565480), (20, 3611014), (22, 3282740), (40, 1805507), (44, 1641370), (55, 1313096), (88, 820685), (110, 656548), (151, 478280), (220, 328274), (302, 239140), (440, 164137), (604, 119570), (755, 95656), (1087, 66440), (1208, 59785), (1510, 47828), (1661, 43480), (2174, 33220), (3020, 23914), (3322, 21740), (4348, 16610), (5435, 13288), (6040, 11957), (6644, 10870), (8305, 8696)]