20671175

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 31164672

約数和(自身を除く): 10493497

約数列:

[1, 5, 7, 25, 35, 41, 43, 67, 175, 205, 215, 287, 301, 335, 469, 1025, 1075, 1435, 1505, 1675, 1763, 2345, 2747, 2881, 7175, 7525, 8815, 11725, 12341, 13735, 14405, 19229, 20167, 44075, 61705, 68675, 72025, 96145, 100835, 118121, 308525, 480725, 504175, 590605, 826847, 2953025, 4134235, 20671175]

約数ペア:

[(1, 20671175), (5, 4134235), (7, 2953025), (25, 826847), (35, 590605), (41, 504175), (43, 480725), (67, 308525), (175, 118121), (205, 100835), (215, 96145), (287, 72025), (301, 68675), (335, 61705), (469, 44075), (1025, 20167), (1075, 19229), (1435, 14405), (1505, 13735), (1675, 12341), (1763, 11725), (2345, 8815), (2747, 7525), (2881, 7175)]