20112225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1321}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 39342720

約数和(自身を除く): 19230495

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 145, 175, 203, 435, 525, 609, 725, 1015, 1321, 2175, 3045, 3963, 5075, 6605, 9247, 15225, 19815, 27741, 33025, 38309, 46235, 99075, 114927, 138705, 191545, 231175, 268163, 574635, 693525, 804489, 957725, 1340815, 2873175, 4022445, 6704075, 20112225]

約数ペア:

[(1, 20112225), (3, 6704075), (5, 4022445), (7, 2873175), (15, 1340815), (21, 957725), (25, 804489), (29, 693525), (35, 574635), (75, 268163), (87, 231175), (105, 191545), (145, 138705), (175, 114927), (203, 99075), (435, 46235), (525, 38309), (609, 33025), (725, 27741), (1015, 19815), (1321, 15225), (2175, 9247), (3045, 6605), (3963, 5075)]