281796759

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 455685120

約数和(自身を除く): 173888361

約数列:

[1, 3, 9, 23, 27, 43, 61, 69, 129, 173, 183, 207, 387, 519, 549, 621, 989, 1161, 1403, 1557, 1647, 2623, 2967, 3979, 4209, 4671, 7439, 7869, 8901, 10553, 11937, 12627, 22317, 23607, 26703, 31659, 35811, 37881, 60329, 66951, 70821, 94977, 107433, 171097, 180987, 200853, 242719, 284931, 453779, 513291, 542961, 728157, 1361337, 1539873, 1628883, 2184471, 4084011, 4619619, 6553413, 10436917, 12252033, 31310751, 93932253, 281796759]

約数ペア:

[(1, 281796759), (3, 93932253), (9, 31310751), (23, 12252033), (27, 10436917), (43, 6553413), (61, 4619619), (69, 4084011), (129, 2184471), (173, 1628883), (183, 1539873), (207, 1361337), (387, 728157), (519, 542961), (549, 513291), (621, 453779), (989, 284931), (1161, 242719), (1403, 200853), (1557, 180987), (1647, 171097), (2623, 107433), (2967, 94977), (3979, 70821), (4209, 66951), (4671, 60329), (7439, 37881), (7869, 35811), (8901, 31659), (10553, 26703), (11937, 23607), (12627, 22317)]