256804510

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^2\times {\mathrm{79}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 482379840

約数和(自身を除く): 225575330

約数列:

[1, 2, 5, 10, 61, 73, 79, 122, 146, 158, 305, 365, 395, 610, 730, 790, 4453, 4819, 5329, 5767, 8906, 9638, 10658, 11534, 22265, 24095, 26645, 28835, 44530, 48190, 53290, 57670, 325069, 351787, 420991, 650138, 703574, 841982, 1625345, 1758935, 2104955, 3250690, 3517870, 4209910, 25680451, 51360902, 128402255, 256804510]

約数ペア:

[(1, 256804510), (2, 128402255), (5, 51360902), (10, 25680451), (61, 4209910), (73, 3517870), (79, 3250690), (122, 2104955), (146, 1758935), (158, 1625345), (305, 841982), (365, 703574), (395, 650138), (610, 420991), (730, 351787), (790, 325069), (4453, 57670), (4819, 53290), (5329, 48190), (5767, 44530), (8906, 28835), (9638, 26645), (10658, 24095), (11534, 22265)]