1620002680

素因数分解:

$2^3\times 5^1\times {\mathrm{2593}}^1\times {\mathrm{15619}}^1$

素因数の和:18223

約数の個数: 32

約数和(自身を含む): 3646645200

約数和(自身を除く): 2026642520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2593, 5186, 10372, 12965, 15619, 20744, 25930, 31238, 51860, 62476, 78095, 103720, 124952, 156190, 312380, 624760, 40500067, 81000134, 162000268, 202500335, 324000536, 405000670, 810001340, 1620002680]

約数ペア:

[(1, 1620002680), (2, 810001340), (4, 405000670), (5, 324000536), (8, 202500335), (10, 162000268), (20, 81000134), (40, 40500067), (2593, 624760), (5186, 312380), (10372, 156190), (12965, 124952), (15619, 103720), (20744, 78095), (25930, 62476), (31238, 51860)]