82137740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 177962400

約数和(自身を除く): 95824660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 215, 298, 430, 596, 641, 745, 860, 1282, 1490, 2564, 2980, 3205, 6407, 6410, 12814, 12820, 25628, 27563, 32035, 55126, 64070, 95509, 110252, 128140, 137815, 191018, 275630, 382036, 477545, 551260, 955090, 1910180, 4106887, 8213774, 16427548, 20534435, 41068870, 82137740]

約数ペア:

[(1, 82137740), (2, 41068870), (4, 20534435), (5, 16427548), (10, 8213774), (20, 4106887), (43, 1910180), (86, 955090), (149, 551260), (172, 477545), (215, 382036), (298, 275630), (430, 191018), (596, 137815), (641, 128140), (745, 110252), (860, 95509), (1282, 64070), (1490, 55126), (2564, 32035), (2980, 27563), (3205, 25628), (6407, 12820), (6410, 12814)]