2488986640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:669

約数の個数: 160

約数和(自身を含む): 6765281280

約数和(自身を除く): 4276294640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 127, 140, 158, 254, 280, 316, 395, 443, 508, 553, 560, 632, 635, 790, 886, 889, 1016, 1106, 1264, 1270, 1580, 1772, 1778, 2032, 2212, 2215, 2540, 2765, 3101, 3160, 3544, 3556, 4424, 4430, 4445, 5080, 5530, 6202, 6320, 7088, 7112, 8848, 8860, 8890, 10033, 10160, 11060, 12404, 14224, 15505, 17720, 17780, 20066, 22120, 24808, 31010, 34997, 35440, 35560, 40132, 44240, 49616, 50165, 56261, 62020, 69994, 70231, 71120, 80264, 100330, 112522, 124040, 139988, 140462, 160528, 174985, 200660, 225044, 244979, 248080, 279976, 280924, 281305, 349970, 351155, 393827, 401320, 450088, 489958, 559952, 561848, 562610, 699940, 702310, 787654, 802640, 900176, 979916, 1123696, 1125220, 1224895, 1399880, 1404620, 1575308, 1959832, 1969135, 2250440, 2449790, 2799760, 2809240, 3150616, 3919664, 3938270, 4444619, 4500880, 4899580, 5618480, 6301232, 7876540, 8889238, 9799160, 15753080, 17778476, 19598320, 22223095, 31112333, 31506160, 35556952, 44446190, 62224666, 71113904, 88892380, 124449332, 155561665, 177784760, 248898664, 311123330, 355569520, 497797328, 622246660, 1244493320, 2488986640]

約数ペア:

[(1, 2488986640), (2, 1244493320), (4, 622246660), (5, 497797328), (7, 355569520), (8, 311123330), (10, 248898664), (14, 177784760), (16, 155561665), (20, 124449332), (28, 88892380), (35, 71113904), (40, 62224666), (56, 44446190), (70, 35556952), (79, 31506160), (80, 31112333), (112, 22223095), (127, 19598320), (140, 17778476), (158, 15753080), (254, 9799160), (280, 8889238), (316, 7876540), (395, 6301232), (443, 5618480), (508, 4899580), (553, 4500880), (560, 4444619), (632, 3938270), (635, 3919664), (790, 3150616), (886, 2809240), (889, 2799760), (1016, 2449790), (1106, 2250440), (1264, 1969135), (1270, 1959832), (1580, 1575308), (1772, 1404620), (1778, 1399880), (2032, 1224895), (2212, 1125220), (2215, 1123696), (2540, 979916), (2765, 900176), (3101, 802640), (3160, 787654), (3544, 702310), (3556, 699940), (4424, 562610), (4430, 561848), (4445, 559952), (5080, 489958), (5530, 450088), (6202, 401320), (6320, 393827), (7088, 351155), (7112, 349970), (8848, 281305), (8860, 280924), (8890, 279976), (10033, 248080), (10160, 244979), (11060, 225044), (12404, 200660), (14224, 174985), (15505, 160528), (17720, 140462), (17780, 139988), (20066, 124040), (22120, 112522), (24808, 100330), (31010, 80264), (34997, 71120), (35440, 70231), (35560, 69994), (40132, 62020), (44240, 56261), (49616, 50165)]