78840657

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 140375040

約数和(自身を除く): 61534383

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 73, 79, 93, 147, 217, 219, 237, 279, 441, 511, 553, 651, 657, 711, 1519, 1533, 1659, 1953, 2263, 2449, 3577, 3871, 4557, 4599, 4977, 5767, 6789, 7347, 10731, 11613, 13671, 15841, 17143, 17301, 20367, 22041, 32193, 34839, 40369, 47523, 51429, 51903, 110887, 120001, 121107, 142569, 154287, 178777, 282583, 332661, 360003, 363321, 536331, 847749, 997983, 1080009, 1251439, 1608993, 2543247, 3754317, 8760073, 11262951, 26280219, 78840657]

約数ペア:

[(1, 78840657), (3, 26280219), (7, 11262951), (9, 8760073), (21, 3754317), (31, 2543247), (49, 1608993), (63, 1251439), (73, 1080009), (79, 997983), (93, 847749), (147, 536331), (217, 363321), (219, 360003), (237, 332661), (279, 282583), (441, 178777), (511, 154287), (553, 142569), (651, 121107), (657, 120001), (711, 110887), (1519, 51903), (1533, 51429), (1659, 47523), (1953, 40369), (2263, 34839), (2449, 32193), (3577, 22041), (3871, 20367), (4557, 17301), (4599, 17143), (4977, 15841), (5767, 13671), (6789, 11613), (7347, 10731)]