15987700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 37107000

約数和(自身を除く): 21119300

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 37, 50, 58, 74, 100, 116, 145, 148, 149, 185, 290, 298, 370, 580, 596, 725, 740, 745, 925, 1073, 1450, 1490, 1850, 2146, 2900, 2980, 3700, 3725, 4292, 4321, 5365, 5513, 7450, 8642, 10730, 11026, 14900, 17284, 21460, 21605, 22052, 26825, 27565, 43210, 53650, 55130, 86420, 107300, 108025, 110260, 137825, 159877, 216050, 275650, 319754, 432100, 551300, 639508, 799385, 1598770, 3197540, 3996925, 7993850, 15987700]

約数ペア:

[(1, 15987700), (2, 7993850), (4, 3996925), (5, 3197540), (10, 1598770), (20, 799385), (25, 639508), (29, 551300), (37, 432100), (50, 319754), (58, 275650), (74, 216050), (100, 159877), (116, 137825), (145, 110260), (148, 108025), (149, 107300), (185, 86420), (290, 55130), (298, 53650), (370, 43210), (580, 27565), (596, 26825), (725, 22052), (740, 21605), (745, 21460), (925, 17284), (1073, 14900), (1450, 11026), (1490, 10730), (1850, 8642), (2146, 7450), (2900, 5513), (2980, 5365), (3700, 4321), (3725, 4292)]