72164620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{991}}^1$

素因数の和:1342

約数の個数: 48

約数和(自身を含む): 165989376

約数和(自身を除く): 93824756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 331, 662, 991, 1324, 1655, 1982, 3310, 3641, 3964, 4955, 6620, 7282, 9910, 10901, 14564, 18205, 19820, 21802, 36410, 43604, 54505, 72820, 109010, 218020, 328021, 656042, 1312084, 1640105, 3280210, 3608231, 6560420, 7216462, 14432924, 18041155, 36082310, 72164620]

約数ペア:

[(1, 72164620), (2, 36082310), (4, 18041155), (5, 14432924), (10, 7216462), (11, 6560420), (20, 3608231), (22, 3280210), (44, 1640105), (55, 1312084), (110, 656042), (220, 328021), (331, 218020), (662, 109010), (991, 72820), (1324, 54505), (1655, 43604), (1982, 36410), (3310, 21802), (3641, 19820), (3964, 18205), (4955, 14564), (6620, 10901), (7282, 9910)]