72920959780

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1031}}^1\times {\mathrm{8819}}^1$

素因数の和:10260

約数の個数: 48

約数和(自身を含む): 153682220160

約数和(自身を除く): 80761260380

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1031, 1604, 2005, 2062, 4010, 4124, 5155, 8020, 8819, 10310, 17638, 20620, 35276, 44095, 88190, 176380, 413431, 826862, 1653724, 2067155, 3536419, 4134310, 7072838, 8268620, 9092389, 14145676, 17682095, 18184778, 35364190, 36369556, 45461945, 70728380, 90923890, 181847780, 3646047989, 7292095978, 14584191956, 18230239945, 36460479890, 72920959780]

約数ペア:

[(1, 72920959780), (2, 36460479890), (4, 18230239945), (5, 14584191956), (10, 7292095978), (20, 3646047989), (401, 181847780), (802, 90923890), (1031, 70728380), (1604, 45461945), (2005, 36369556), (2062, 35364190), (4010, 18184778), (4124, 17682095), (5155, 14145676), (8020, 9092389), (8819, 8268620), (10310, 7072838), (17638, 4134310), (20620, 3536419), (35276, 2067155), (44095, 1653724), (88190, 826862), (176380, 413431)]