19967490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1489}}^1$

素因数の和:1651

約数の個数: 48

約数和(自身を含む): 52299000

約数和(自身を除く): 32331510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 149, 298, 447, 745, 894, 1341, 1489, 1490, 2235, 2682, 2978, 4467, 4470, 6705, 7445, 8934, 13401, 13410, 14890, 22335, 26802, 44670, 67005, 134010, 221861, 443722, 665583, 1109305, 1331166, 1996749, 2218610, 3327915, 3993498, 6655830, 9983745, 19967490]

約数ペア:

[(1, 19967490), (2, 9983745), (3, 6655830), (5, 3993498), (6, 3327915), (9, 2218610), (10, 1996749), (15, 1331166), (18, 1109305), (30, 665583), (45, 443722), (90, 221861), (149, 134010), (298, 67005), (447, 44670), (745, 26802), (894, 22335), (1341, 14890), (1489, 13410), (1490, 13401), (2235, 8934), (2682, 7445), (2978, 6705), (4467, 4470)]