402720800

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:595

約数の個数: 144

約数和(自身を含む): 1051807680

約数和(自身を除く): 649086880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 43, 46, 50, 80, 86, 92, 100, 115, 160, 172, 184, 200, 215, 230, 344, 368, 400, 430, 460, 509, 575, 688, 736, 800, 860, 920, 989, 1018, 1075, 1150, 1376, 1720, 1840, 1978, 2036, 2150, 2300, 2545, 3440, 3680, 3956, 4072, 4300, 4600, 4945, 5090, 6880, 7912, 8144, 8600, 9200, 9890, 10180, 11707, 12725, 15824, 16288, 17200, 18400, 19780, 20360, 21887, 23414, 24725, 25450, 31648, 34400, 39560, 40720, 43774, 46828, 49450, 50900, 58535, 79120, 81440, 87548, 93656, 98900, 101800, 109435, 117070, 158240, 175096, 187312, 197800, 203600, 218870, 234140, 292675, 350192, 374624, 395600, 407200, 437740, 468280, 503401, 547175, 585350, 700384, 791200, 875480, 936560, 1006802, 1094350, 1170700, 1750960, 1873120, 2013604, 2188700, 2341400, 2517005, 3501920, 4027208, 4377400, 4682800, 5034010, 8054416, 8754800, 9365600, 10068020, 12585025, 16108832, 17509600, 20136040, 25170050, 40272080, 50340100, 80544160, 100680200, 201360400, 402720800]

約数ペア:

[(1, 402720800), (2, 201360400), (4, 100680200), (5, 80544160), (8, 50340100), (10, 40272080), (16, 25170050), (20, 20136040), (23, 17509600), (25, 16108832), (32, 12585025), (40, 10068020), (43, 9365600), (46, 8754800), (50, 8054416), (80, 5034010), (86, 4682800), (92, 4377400), (100, 4027208), (115, 3501920), (160, 2517005), (172, 2341400), (184, 2188700), (200, 2013604), (215, 1873120), (230, 1750960), (344, 1170700), (368, 1094350), (400, 1006802), (430, 936560), (460, 875480), (509, 791200), (575, 700384), (688, 585350), (736, 547175), (800, 503401), (860, 468280), (920, 437740), (989, 407200), (1018, 395600), (1075, 374624), (1150, 350192), (1376, 292675), (1720, 234140), (1840, 218870), (1978, 203600), (2036, 197800), (2150, 187312), (2300, 175096), (2545, 158240), (3440, 117070), (3680, 109435), (3956, 101800), (4072, 98900), (4300, 93656), (4600, 87548), (4945, 81440), (5090, 79120), (6880, 58535), (7912, 50900), (8144, 49450), (8600, 46828), (9200, 43774), (9890, 40720), (10180, 39560), (11707, 34400), (12725, 31648), (15824, 25450), (16288, 24725), (17200, 23414), (18400, 21887), (19780, 20360)]