17780265

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{419}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 15241815

約数列:

[1, 3, 5, 9, 15, 23, 41, 45, 69, 115, 123, 205, 207, 345, 369, 419, 615, 943, 1035, 1257, 1845, 2095, 2829, 3771, 4715, 6285, 8487, 9637, 14145, 17179, 18855, 28911, 42435, 48185, 51537, 85895, 86733, 144555, 154611, 257685, 395117, 433665, 773055, 1185351, 1975585, 3556053, 5926755, 17780265]

約数ペア:

[(1, 17780265), (3, 5926755), (5, 3556053), (9, 1975585), (15, 1185351), (23, 773055), (41, 433665), (45, 395117), (69, 257685), (115, 154611), (123, 144555), (205, 86733), (207, 85895), (345, 51537), (369, 48185), (419, 42435), (615, 28911), (943, 18855), (1035, 17179), (1257, 14145), (1845, 9637), (2095, 8487), (2829, 6285), (3771, 4715)]