20189901584

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1\times {\mathrm{1801}}^1$

素因数の和:2616

約数の個数: 80

約数和(自身を含む): 41893818624

約数和(自身を除く): 21703917040

約数列:

[1, 2, 4, 8, 16, 23, 41, 46, 82, 92, 164, 184, 328, 368, 656, 743, 943, 1486, 1801, 1886, 2972, 3602, 3772, 5944, 7204, 7544, 11888, 14408, 15088, 17089, 28816, 30463, 34178, 41423, 60926, 68356, 73841, 82846, 121852, 136712, 147682, 165692, 243704, 273424, 295364, 331384, 487408, 590728, 662768, 700649, 1181456, 1338143, 1401298, 1698343, 2676286, 2802596, 3396686, 5352572, 5605192, 6793372, 10705144, 11210384, 13586744, 21410288, 27173488, 30777289, 54863863, 61554578, 109727726, 123109156, 219455452, 246218312, 438910904, 492436624, 877821808, 1261868849, 2523737698, 5047475396, 10094950792, 20189901584]

約数ペア:

[(1, 20189901584), (2, 10094950792), (4, 5047475396), (8, 2523737698), (16, 1261868849), (23, 877821808), (41, 492436624), (46, 438910904), (82, 246218312), (92, 219455452), (164, 123109156), (184, 109727726), (328, 61554578), (368, 54863863), (656, 30777289), (743, 27173488), (943, 21410288), (1486, 13586744), (1801, 11210384), (1886, 10705144), (2972, 6793372), (3602, 5605192), (3772, 5352572), (5944, 3396686), (7204, 2802596), (7544, 2676286), (11888, 1698343), (14408, 1401298), (15088, 1338143), (17089, 1181456), (28816, 700649), (30463, 662768), (34178, 590728), (41423, 487408), (60926, 331384), (68356, 295364), (73841, 273424), (82846, 243704), (121852, 165692), (136712, 147682)]