81564378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2377}}^1$

素因数の和:2451

約数の個数: 64

約数和(自身を含む): 200893440

約数和(自身を除く): 119329062

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 43, 57, 86, 114, 129, 133, 258, 266, 301, 399, 602, 798, 817, 903, 1634, 1806, 2377, 2451, 4754, 4902, 5719, 7131, 11438, 14262, 16639, 17157, 33278, 34314, 45163, 49917, 90326, 99834, 102211, 135489, 204422, 270978, 306633, 316141, 613266, 632282, 715477, 948423, 1430954, 1896846, 1942009, 2146431, 3884018, 4292862, 5826027, 11652054, 13594063, 27188126, 40782189, 81564378]

約数ペア:

[(1, 81564378), (2, 40782189), (3, 27188126), (6, 13594063), (7, 11652054), (14, 5826027), (19, 4292862), (21, 3884018), (38, 2146431), (42, 1942009), (43, 1896846), (57, 1430954), (86, 948423), (114, 715477), (129, 632282), (133, 613266), (258, 316141), (266, 306633), (301, 270978), (399, 204422), (602, 135489), (798, 102211), (817, 99834), (903, 90326), (1634, 49917), (1806, 45163), (2377, 34314), (2451, 33278), (4754, 17157), (4902, 16639), (5719, 14262), (7131, 11438)]