2690420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 6159888

約数和(自身を除く): 3469468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 193, 205, 340, 386, 410, 697, 772, 820, 965, 1394, 1930, 2788, 3281, 3485, 3860, 6562, 6970, 7913, 13124, 13940, 15826, 16405, 31652, 32810, 39565, 65620, 79130, 134521, 158260, 269042, 538084, 672605, 1345210, 2690420]

約数ペア:

[(1, 2690420), (2, 1345210), (4, 672605), (5, 538084), (10, 269042), (17, 158260), (20, 134521), (34, 79130), (41, 65620), (68, 39565), (82, 32810), (85, 31652), (164, 16405), (170, 15826), (193, 13940), (205, 13124), (340, 7913), (386, 6970), (410, 6562), (697, 3860), (772, 3485), (820, 3281), (965, 2788), (1394, 1930)]