18878510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 40116384

約数和(自身を除く): 21237874

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 197, 259, 370, 394, 518, 985, 1295, 1369, 1379, 1970, 2590, 2738, 2758, 6845, 6895, 7289, 9583, 13690, 13790, 14578, 19166, 36445, 47915, 51023, 72890, 95830, 102046, 255115, 269693, 510230, 539386, 1348465, 1887851, 2696930, 3775702, 9439255, 18878510]

約数ペア:

[(1, 18878510), (2, 9439255), (5, 3775702), (7, 2696930), (10, 1887851), (14, 1348465), (35, 539386), (37, 510230), (70, 269693), (74, 255115), (185, 102046), (197, 95830), (259, 72890), (370, 51023), (394, 47915), (518, 36445), (985, 19166), (1295, 14578), (1369, 13790), (1379, 13690), (1970, 9583), (2590, 7289), (2738, 6895), (2758, 6845)]