2621745

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:95

約数の個数: 72

約数和(自身を含む): 5601960

約数和(自身を除く): 2980215

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 41, 45, 49, 63, 87, 105, 123, 145, 147, 203, 205, 245, 261, 287, 315, 369, 435, 441, 609, 615, 735, 861, 1015, 1189, 1305, 1421, 1435, 1827, 1845, 2009, 2205, 2583, 3045, 3567, 4263, 4305, 5945, 6027, 7105, 8323, 9135, 10045, 10701, 12789, 12915, 17835, 18081, 21315, 24969, 30135, 41615, 53505, 58261, 63945, 74907, 90405, 124845, 174783, 291305, 374535, 524349, 873915, 2621745]

約数ペア:

[(1, 2621745), (3, 873915), (5, 524349), (7, 374535), (9, 291305), (15, 174783), (21, 124845), (29, 90405), (35, 74907), (41, 63945), (45, 58261), (49, 53505), (63, 41615), (87, 30135), (105, 24969), (123, 21315), (145, 18081), (147, 17835), (203, 12915), (205, 12789), (245, 10701), (261, 10045), (287, 9135), (315, 8323), (369, 7105), (435, 6027), (441, 5945), (609, 4305), (615, 4263), (735, 3567), (861, 3045), (1015, 2583), (1189, 2205), (1305, 2009), (1421, 1845), (1435, 1827)]