78688140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2027}}^1$

素因数の和:2686

約数の個数: 48

約数和(自身を含む): 220776192

約数和(自身を除く): 142088052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 647, 1294, 1941, 2027, 2588, 3235, 3882, 4054, 6081, 6470, 7764, 8108, 9705, 10135, 12162, 12940, 19410, 20270, 24324, 30405, 38820, 40540, 60810, 121620, 1311469, 2622938, 3934407, 5245876, 6557345, 7868814, 13114690, 15737628, 19672035, 26229380, 39344070, 78688140]

約数ペア:

[(1, 78688140), (2, 39344070), (3, 26229380), (4, 19672035), (5, 15737628), (6, 13114690), (10, 7868814), (12, 6557345), (15, 5245876), (20, 3934407), (30, 2622938), (60, 1311469), (647, 121620), (1294, 60810), (1941, 40540), (2027, 38820), (2588, 30405), (3235, 24324), (3882, 20270), (4054, 19410), (6081, 12940), (6470, 12162), (7764, 10135), (8108, 9705)]