81857484

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1789}}^1$

素因数の和:1871

約数の個数: 72

約数和(自身を含む): 218924160

約数和(自身を除く): 137066676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 41, 62, 82, 93, 123, 124, 164, 186, 246, 279, 369, 372, 492, 558, 738, 1116, 1271, 1476, 1789, 2542, 3578, 3813, 5084, 5367, 7156, 7626, 10734, 11439, 15252, 16101, 21468, 22878, 32202, 45756, 55459, 64404, 73349, 110918, 146698, 166377, 220047, 221836, 293396, 332754, 440094, 499131, 660141, 665508, 880188, 998262, 1320282, 1996524, 2273819, 2640564, 4547638, 6821457, 9095276, 13642914, 20464371, 27285828, 40928742, 81857484]

約数ペア:

[(1, 81857484), (2, 40928742), (3, 27285828), (4, 20464371), (6, 13642914), (9, 9095276), (12, 6821457), (18, 4547638), (31, 2640564), (36, 2273819), (41, 1996524), (62, 1320282), (82, 998262), (93, 880188), (123, 665508), (124, 660141), (164, 499131), (186, 440094), (246, 332754), (279, 293396), (369, 221836), (372, 220047), (492, 166377), (558, 146698), (738, 110918), (1116, 73349), (1271, 64404), (1476, 55459), (1789, 45756), (2542, 32202), (3578, 22878), (3813, 21468), (5084, 16101), (5367, 15252), (7156, 11439), (7626, 10734)]