28722400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:273

約数の個数: 144

約数和(自身を含む): 83994624

約数和(自身を除く): 55272224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 140, 160, 161, 175, 184, 200, 223, 224, 230, 280, 322, 350, 368, 400, 446, 460, 560, 575, 644, 700, 736, 800, 805, 892, 920, 1115, 1120, 1150, 1288, 1400, 1561, 1610, 1784, 1840, 2230, 2300, 2576, 2800, 3122, 3220, 3568, 3680, 4025, 4460, 4600, 5129, 5152, 5575, 5600, 6244, 6440, 7136, 7805, 8050, 8920, 9200, 10258, 11150, 12488, 12880, 15610, 16100, 17840, 18400, 20516, 22300, 24976, 25645, 25760, 31220, 32200, 35680, 35903, 39025, 41032, 44600, 49952, 51290, 62440, 64400, 71806, 78050, 82064, 89200, 102580, 124880, 128225, 128800, 143612, 156100, 164128, 178400, 179515, 205160, 249760, 256450, 287224, 312200, 359030, 410320, 512900, 574448, 624400, 718060, 820640, 897575, 1025800, 1148896, 1248800, 1436120, 1795150, 2051600, 2872240, 3590300, 4103200, 5744480, 7180600, 14361200, 28722400]

約数ペア:

[(1, 28722400), (2, 14361200), (4, 7180600), (5, 5744480), (7, 4103200), (8, 3590300), (10, 2872240), (14, 2051600), (16, 1795150), (20, 1436120), (23, 1248800), (25, 1148896), (28, 1025800), (32, 897575), (35, 820640), (40, 718060), (46, 624400), (50, 574448), (56, 512900), (70, 410320), (80, 359030), (92, 312200), (100, 287224), (112, 256450), (115, 249760), (140, 205160), (160, 179515), (161, 178400), (175, 164128), (184, 156100), (200, 143612), (223, 128800), (224, 128225), (230, 124880), (280, 102580), (322, 89200), (350, 82064), (368, 78050), (400, 71806), (446, 64400), (460, 62440), (560, 51290), (575, 49952), (644, 44600), (700, 41032), (736, 39025), (800, 35903), (805, 35680), (892, 32200), (920, 31220), (1115, 25760), (1120, 25645), (1150, 24976), (1288, 22300), (1400, 20516), (1561, 18400), (1610, 17840), (1784, 16100), (1840, 15610), (2230, 12880), (2300, 12488), (2576, 11150), (2800, 10258), (3122, 9200), (3220, 8920), (3568, 8050), (3680, 7805), (4025, 7136), (4460, 6440), (4600, 6244), (5129, 5600), (5152, 5575)]