72643840

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 191318400

約数和(自身を除く): 118674560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 64, 76, 80, 95, 103, 116, 128, 145, 152, 160, 190, 206, 232, 256, 290, 304, 320, 380, 412, 464, 515, 551, 580, 608, 640, 760, 824, 928, 1030, 1102, 1160, 1216, 1280, 1520, 1648, 1856, 1957, 2060, 2204, 2320, 2432, 2755, 2987, 3040, 3296, 3712, 3914, 4120, 4408, 4640, 4864, 5510, 5974, 6080, 6592, 7424, 7828, 8240, 8816, 9280, 9785, 11020, 11948, 12160, 13184, 14935, 15656, 16480, 17632, 18560, 19570, 22040, 23896, 24320, 26368, 29870, 31312, 32960, 35264, 37120, 39140, 44080, 47792, 56753, 59740, 62624, 65920, 70528, 78280, 88160, 95584, 113506, 119480, 125248, 131840, 141056, 156560, 176320, 191168, 227012, 238960, 250496, 283765, 313120, 352640, 382336, 454024, 477920, 500992, 567530, 626240, 705280, 764672, 908048, 955840, 1135060, 1252480, 1816096, 1911680, 2270120, 2504960, 3632192, 3823360, 4540240, 7264384, 9080480, 14528768, 18160960, 36321920, 72643840]

約数ペア:

[(1, 72643840), (2, 36321920), (4, 18160960), (5, 14528768), (8, 9080480), (10, 7264384), (16, 4540240), (19, 3823360), (20, 3632192), (29, 2504960), (32, 2270120), (38, 1911680), (40, 1816096), (58, 1252480), (64, 1135060), (76, 955840), (80, 908048), (95, 764672), (103, 705280), (116, 626240), (128, 567530), (145, 500992), (152, 477920), (160, 454024), (190, 382336), (206, 352640), (232, 313120), (256, 283765), (290, 250496), (304, 238960), (320, 227012), (380, 191168), (412, 176320), (464, 156560), (515, 141056), (551, 131840), (580, 125248), (608, 119480), (640, 113506), (760, 95584), (824, 88160), (928, 78280), (1030, 70528), (1102, 65920), (1160, 62624), (1216, 59740), (1280, 56753), (1520, 47792), (1648, 44080), (1856, 39140), (1957, 37120), (2060, 35264), (2204, 32960), (2320, 31312), (2432, 29870), (2755, 26368), (2987, 24320), (3040, 23896), (3296, 22040), (3712, 19570), (3914, 18560), (4120, 17632), (4408, 16480), (4640, 15656), (4864, 14935), (5510, 13184), (5974, 12160), (6080, 11948), (6592, 11020), (7424, 9785), (7828, 9280), (8240, 8816)]