78421315

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 115716384

約数和(自身を除く): 37295069

約数列:

[1, 5, 7, 35, 37, 41, 49, 185, 205, 211, 245, 259, 287, 1055, 1295, 1435, 1477, 1517, 1813, 2009, 7385, 7585, 7807, 8651, 9065, 10045, 10339, 10619, 39035, 43255, 51695, 53095, 54649, 60557, 74333, 273245, 302785, 320087, 371665, 382543, 423899, 1600435, 1912715, 2119495, 2240609, 11203045, 15684263, 78421315]

約数ペア:

[(1, 78421315), (5, 15684263), (7, 11203045), (35, 2240609), (37, 2119495), (41, 1912715), (49, 1600435), (185, 423899), (205, 382543), (211, 371665), (245, 320087), (259, 302785), (287, 273245), (1055, 74333), (1295, 60557), (1435, 54649), (1477, 53095), (1517, 51695), (1813, 43255), (2009, 39035), (7385, 10619), (7585, 10339), (7807, 10045), (8651, 9065)]