20171120900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1\times {\mathrm{709}}^1$

素因数の和:1246

約数の個数: 144

約数和(自身を含む): 50732169600

約数和(自身を除く): 30561048700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 97, 100, 140, 175, 194, 350, 388, 419, 485, 679, 700, 709, 838, 970, 1358, 1418, 1676, 1940, 2095, 2425, 2716, 2836, 2933, 3395, 3545, 4190, 4850, 4963, 5866, 6790, 7090, 8380, 9700, 9926, 10475, 11732, 13580, 14180, 14665, 16975, 17725, 19852, 20950, 24815, 29330, 33950, 35450, 40643, 41900, 49630, 58660, 67900, 68773, 70900, 73325, 81286, 99260, 124075, 137546, 146650, 162572, 203215, 248150, 275092, 284501, 293300, 297071, 343865, 406430, 481411, 496300, 569002, 594142, 687730, 812860, 962822, 1016075, 1138004, 1188284, 1375460, 1422505, 1485355, 1719325, 1925644, 2032150, 2079497, 2407055, 2845010, 2970710, 3438650, 4064300, 4158994, 4814110, 5690020, 5941420, 6877300, 7112525, 7426775, 8317988, 9628220, 10397485, 12035275, 14225050, 14853550, 20794970, 24070550, 28450100, 28815887, 29707100, 41589940, 48141100, 51987425, 57631774, 103974850, 115263548, 144079435, 201711209, 207949700, 288158870, 403422418, 576317740, 720397175, 806844836, 1008556045, 1440794350, 2017112090, 2881588700, 4034224180, 5042780225, 10085560450, 20171120900]

約数ペア:

[(1, 20171120900), (2, 10085560450), (4, 5042780225), (5, 4034224180), (7, 2881588700), (10, 2017112090), (14, 1440794350), (20, 1008556045), (25, 806844836), (28, 720397175), (35, 576317740), (50, 403422418), (70, 288158870), (97, 207949700), (100, 201711209), (140, 144079435), (175, 115263548), (194, 103974850), (350, 57631774), (388, 51987425), (419, 48141100), (485, 41589940), (679, 29707100), (700, 28815887), (709, 28450100), (838, 24070550), (970, 20794970), (1358, 14853550), (1418, 14225050), (1676, 12035275), (1940, 10397485), (2095, 9628220), (2425, 8317988), (2716, 7426775), (2836, 7112525), (2933, 6877300), (3395, 5941420), (3545, 5690020), (4190, 4814110), (4850, 4158994), (4963, 4064300), (5866, 3438650), (6790, 2970710), (7090, 2845010), (8380, 2407055), (9700, 2079497), (9926, 2032150), (10475, 1925644), (11732, 1719325), (13580, 1485355), (14180, 1422505), (14665, 1375460), (16975, 1188284), (17725, 1138004), (19852, 1016075), (20950, 962822), (24815, 812860), (29330, 687730), (33950, 594142), (35450, 569002), (40643, 496300), (41900, 481411), (49630, 406430), (58660, 343865), (67900, 297071), (68773, 293300), (70900, 284501), (73325, 275092), (81286, 248150), (99260, 203215), (124075, 162572), (137546, 146650)]