199347280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{226531}}^1$

素因数の和:226555

約数の個数: 40

約数和(自身を含む): 505619424

約数和(自身を除く): 306272144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 226531, 453062, 906124, 1132655, 1812248, 2265310, 2491841, 3624496, 4530620, 4983682, 9061240, 9967364, 12459205, 18122480, 19934728, 24918410, 39869456, 49836820, 99673640, 199347280]

約数ペア:

[(1, 199347280), (2, 99673640), (4, 49836820), (5, 39869456), (8, 24918410), (10, 19934728), (11, 18122480), (16, 12459205), (20, 9967364), (22, 9061240), (40, 4983682), (44, 4530620), (55, 3624496), (80, 2491841), (88, 2265310), (110, 1812248), (176, 1132655), (220, 906124), (440, 453062), (880, 226531)]