1640500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 3813264

約数和(自身を除く): 2172764

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 193, 250, 340, 386, 425, 500, 772, 850, 965, 1700, 1930, 2125, 3281, 3860, 4250, 4825, 6562, 8500, 9650, 13124, 16405, 19300, 24125, 32810, 48250, 65620, 82025, 96500, 164050, 328100, 410125, 820250, 1640500]

約数ペア:

[(1, 1640500), (2, 820250), (4, 410125), (5, 328100), (10, 164050), (17, 96500), (20, 82025), (25, 65620), (34, 48250), (50, 32810), (68, 24125), (85, 19300), (100, 16405), (125, 13124), (170, 9650), (193, 8500), (250, 6562), (340, 4825), (386, 4250), (425, 3860), (500, 3281), (772, 2125), (850, 1930), (965, 1700)]