20563675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 29855232

約数和(自身を除く): 9291557

約数列:

[1, 5, 11, 25, 37, 43, 47, 55, 185, 215, 235, 275, 407, 473, 517, 925, 1075, 1175, 1591, 1739, 2021, 2035, 2365, 2585, 7955, 8695, 10105, 10175, 11825, 12925, 17501, 19129, 22231, 39775, 43475, 50525, 74777, 87505, 95645, 111155, 373885, 437525, 478225, 555775, 822547, 1869425, 4112735, 20563675]

約数ペア:

[(1, 20563675), (5, 4112735), (11, 1869425), (25, 822547), (37, 555775), (43, 478225), (47, 437525), (55, 373885), (185, 111155), (215, 95645), (235, 87505), (275, 74777), (407, 50525), (473, 43475), (517, 39775), (925, 22231), (1075, 19129), (1175, 17501), (1591, 12925), (1739, 11825), (2021, 10175), (2035, 10105), (2365, 8695), (2585, 7955)]