1285996815

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{20369}}^1$

素因数の和:20464

約数の個数: 48

約数和(自身を含む): 2364223680

約数和(自身を除く): 1078226865

約数列:

[1, 3, 5, 9, 15, 23, 45, 61, 69, 115, 183, 207, 305, 345, 549, 915, 1035, 1403, 2745, 4209, 7015, 12627, 20369, 21045, 61107, 63135, 101845, 183321, 305535, 468487, 916605, 1242509, 1405461, 2342435, 3727527, 4216383, 6212545, 7027305, 11182581, 18637635, 21081915, 28577707, 55912905, 85733121, 142888535, 257199363, 428665605, 1285996815]

約数ペア:

[(1, 1285996815), (3, 428665605), (5, 257199363), (9, 142888535), (15, 85733121), (23, 55912905), (45, 28577707), (61, 21081915), (69, 18637635), (115, 11182581), (183, 7027305), (207, 6212545), (305, 4216383), (345, 3727527), (549, 2342435), (915, 1405461), (1035, 1242509), (1403, 916605), (2745, 468487), (4209, 305535), (7015, 183321), (12627, 101845), (20369, 63135), (21045, 61107)]