278889615

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 513216000

約数和(自身を除く): 234326385

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 107, 129, 135, 215, 321, 387, 449, 535, 645, 963, 1161, 1347, 1605, 1935, 2245, 2889, 4041, 4601, 4815, 5805, 6735, 12123, 13803, 14445, 19307, 20205, 23005, 41409, 48043, 57921, 60615, 69015, 96535, 124227, 144129, 173763, 207045, 240215, 289605, 432387, 521289, 621135, 720645, 868815, 1297161, 2065849, 2161935, 2606445, 6197547, 6485805, 10329245, 18592641, 30987735, 55777923, 92963205, 278889615]

約数ペア:

[(1, 278889615), (3, 92963205), (5, 55777923), (9, 30987735), (15, 18592641), (27, 10329245), (43, 6485805), (45, 6197547), (107, 2606445), (129, 2161935), (135, 2065849), (215, 1297161), (321, 868815), (387, 720645), (449, 621135), (535, 521289), (645, 432387), (963, 289605), (1161, 240215), (1347, 207045), (1605, 173763), (1935, 144129), (2245, 124227), (2889, 96535), (4041, 69015), (4601, 60615), (4815, 57921), (5805, 48043), (6735, 41409), (12123, 23005), (13803, 20205), (14445, 19307)]