8642120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 20995200

約数和(自身を除く): 12353080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 179, 284, 340, 355, 358, 568, 680, 710, 716, 895, 1207, 1420, 1432, 1790, 2414, 2840, 3043, 3580, 4828, 6035, 6086, 7160, 9656, 12070, 12172, 12709, 15215, 24140, 24344, 25418, 30430, 48280, 50836, 60860, 63545, 101672, 121720, 127090, 216053, 254180, 432106, 508360, 864212, 1080265, 1728424, 2160530, 4321060, 8642120]

約数ペア:

[(1, 8642120), (2, 4321060), (4, 2160530), (5, 1728424), (8, 1080265), (10, 864212), (17, 508360), (20, 432106), (34, 254180), (40, 216053), (68, 127090), (71, 121720), (85, 101672), (136, 63545), (142, 60860), (170, 50836), (179, 48280), (284, 30430), (340, 25418), (355, 24344), (358, 24140), (568, 15215), (680, 12709), (710, 12172), (716, 12070), (895, 9656), (1207, 7160), (1420, 6086), (1432, 6035), (1790, 4828), (2414, 3580), (2840, 3043)]