72721700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{17737}}^1$

素因数の和:17792

約数の個数: 36

約数和(自身を含む): 161664132

約数和(自身を除く): 88942432

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 17737, 35474, 70948, 88685, 177370, 354740, 443425, 727217, 886850, 1454434, 1773700, 2908868, 3636085, 7272170, 14544340, 18180425, 36360850, 72721700]

約数ペア:

[(1, 72721700), (2, 36360850), (4, 18180425), (5, 14544340), (10, 7272170), (20, 3636085), (25, 2908868), (41, 1773700), (50, 1454434), (82, 886850), (100, 727217), (164, 443425), (205, 354740), (410, 177370), (820, 88685), (1025, 70948), (2050, 35474), (4100, 17737)]