28837760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:224

約数の個数: 128

約数和(自身を含む): 81224640

約数和(自身を除く): 52386880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 128, 140, 157, 160, 164, 205, 224, 280, 287, 314, 320, 328, 410, 448, 560, 574, 628, 640, 656, 785, 820, 896, 1099, 1120, 1148, 1256, 1312, 1435, 1570, 1640, 2198, 2240, 2296, 2512, 2624, 2870, 3140, 3280, 4396, 4480, 4592, 5024, 5248, 5495, 5740, 6280, 6437, 6560, 8792, 9184, 10048, 10990, 11480, 12560, 12874, 13120, 17584, 18368, 20096, 21980, 22960, 25120, 25748, 26240, 32185, 35168, 36736, 43960, 45059, 45920, 50240, 51496, 64370, 70336, 87920, 90118, 91840, 100480, 102992, 128740, 140672, 175840, 180236, 183680, 205984, 225295, 257480, 351680, 360472, 411968, 450590, 514960, 703360, 720944, 823936, 901180, 1029920, 1441888, 1802360, 2059840, 2883776, 3604720, 4119680, 5767552, 7209440, 14418880, 28837760]

約数ペア:

[(1, 28837760), (2, 14418880), (4, 7209440), (5, 5767552), (7, 4119680), (8, 3604720), (10, 2883776), (14, 2059840), (16, 1802360), (20, 1441888), (28, 1029920), (32, 901180), (35, 823936), (40, 720944), (41, 703360), (56, 514960), (64, 450590), (70, 411968), (80, 360472), (82, 351680), (112, 257480), (128, 225295), (140, 205984), (157, 183680), (160, 180236), (164, 175840), (205, 140672), (224, 128740), (280, 102992), (287, 100480), (314, 91840), (320, 90118), (328, 87920), (410, 70336), (448, 64370), (560, 51496), (574, 50240), (628, 45920), (640, 45059), (656, 43960), (785, 36736), (820, 35168), (896, 32185), (1099, 26240), (1120, 25748), (1148, 25120), (1256, 22960), (1312, 21980), (1435, 20096), (1570, 18368), (1640, 17584), (2198, 13120), (2240, 12874), (2296, 12560), (2512, 11480), (2624, 10990), (2870, 10048), (3140, 9184), (3280, 8792), (4396, 6560), (4480, 6437), (4592, 6280), (5024, 5740), (5248, 5495)]