2802555

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 5975424

約数和(自身を除く): 3172869

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 41, 45, 49, 63, 93, 105, 123, 147, 155, 205, 217, 245, 279, 287, 315, 369, 441, 465, 615, 651, 735, 861, 1085, 1271, 1395, 1435, 1519, 1845, 1953, 2009, 2205, 2583, 3255, 3813, 4305, 4557, 6027, 6355, 7595, 8897, 9765, 10045, 11439, 12915, 13671, 18081, 19065, 22785, 26691, 30135, 44485, 57195, 62279, 68355, 80073, 90405, 133455, 186837, 311395, 400365, 560511, 934185, 2802555]

約数ペア:

[(1, 2802555), (3, 934185), (5, 560511), (7, 400365), (9, 311395), (15, 186837), (21, 133455), (31, 90405), (35, 80073), (41, 68355), (45, 62279), (49, 57195), (63, 44485), (93, 30135), (105, 26691), (123, 22785), (147, 19065), (155, 18081), (205, 13671), (217, 12915), (245, 11439), (279, 10045), (287, 9765), (315, 8897), (369, 7595), (441, 6355), (465, 6027), (615, 4557), (651, 4305), (735, 3813), (861, 3255), (1085, 2583), (1271, 2205), (1395, 2009), (1435, 1953), (1519, 1845)]