72739480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165317}}^1$

素因数の和:165339

約数の個数: 32

約数和(自身を含む): 178543440

約数和(自身を除く): 105803960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165317, 330634, 661268, 826585, 1322536, 1653170, 1818487, 3306340, 3636974, 6612680, 7273948, 9092435, 14547896, 18184870, 36369740, 72739480]

約数ペア:

[(1, 72739480), (2, 36369740), (4, 18184870), (5, 14547896), (8, 9092435), (10, 7273948), (11, 6612680), (20, 3636974), (22, 3306340), (40, 1818487), (44, 1653170), (55, 1322536), (88, 826585), (110, 661268), (220, 330634), (440, 165317)]