20910492

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 56015232

約数和(自身を除く): 35104740

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, 457, 492, 558, 738, 914, 1116, 1271, 1371, 1476, 1828, 2542, 2742, 3813, 4113, 5084, 5484, 7626, 8226, 11439, 14167, 15252, 16452, 18737, 22878, 28334, 37474, 42501, 45756, 56211, 56668, 74948, 85002, 112422, 127503, 168633, 170004, 224844, 255006, 337266, 510012, 580847, 674532, 1161694, 1742541, 2323388, 3485082, 5227623, 6970164, 10455246, 20910492]

約数ペア:

[(1, 20910492), (2, 10455246), (3, 6970164), (4, 5227623), (6, 3485082), (9, 2323388), (12, 1742541), (18, 1161694), (31, 674532), (36, 580847), (41, 510012), (62, 337266), (82, 255006), (93, 224844), (123, 170004), (124, 168633), (164, 127503), (186, 112422), (246, 85002), (279, 74948), (369, 56668), (372, 56211), (457, 45756), (492, 42501), (558, 37474), (738, 28334), (914, 22878), (1116, 18737), (1271, 16452), (1371, 15252), (1476, 14167), (1828, 11439), (2542, 8226), (2742, 7626), (3813, 5484), (4113, 5084)]