20122450

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 39227400

約数和(自身を除く): 19104950

約数列:

[1, 2, 5, 10, 25, 37, 50, 73, 74, 146, 149, 185, 298, 365, 370, 730, 745, 925, 1490, 1825, 1850, 2701, 3650, 3725, 5402, 5513, 7450, 10877, 11026, 13505, 21754, 27010, 27565, 54385, 55130, 67525, 108770, 135050, 137825, 271925, 275650, 402449, 543850, 804898, 2012245, 4024490, 10061225, 20122450]

約数ペア:

[(1, 20122450), (2, 10061225), (5, 4024490), (10, 2012245), (25, 804898), (37, 543850), (50, 402449), (73, 275650), (74, 271925), (146, 137825), (149, 135050), (185, 108770), (298, 67525), (365, 55130), (370, 54385), (730, 27565), (745, 27010), (925, 21754), (1490, 13505), (1825, 11026), (1850, 10877), (2701, 7450), (3650, 5513), (3725, 5402)]