20041175

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 32140800

約数和(自身を除く): 12099625

約数列:

[1, 5, 7, 11, 25, 29, 35, 55, 77, 145, 175, 203, 275, 319, 359, 385, 725, 1015, 1595, 1795, 1925, 2233, 2513, 3949, 5075, 7975, 8975, 10411, 11165, 12565, 19745, 27643, 52055, 55825, 62825, 72877, 98725, 114521, 138215, 260275, 364385, 572605, 691075, 801647, 1821925, 2863025, 4008235, 20041175]

約数ペア:

[(1, 20041175), (5, 4008235), (7, 2863025), (11, 1821925), (25, 801647), (29, 691075), (35, 572605), (55, 364385), (77, 260275), (145, 138215), (175, 114521), (203, 98725), (275, 72877), (319, 62825), (359, 55825), (385, 52055), (725, 27643), (1015, 19745), (1595, 12565), (1795, 11165), (1925, 10411), (2233, 8975), (2513, 7975), (3949, 5075)]