278519500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 192

約数和(自身を含む): 764854272

約数和(自身を除く): 486334772

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 31, 34, 35, 50, 62, 68, 70, 85, 100, 119, 124, 125, 140, 151, 155, 170, 175, 217, 238, 250, 302, 310, 340, 350, 425, 434, 476, 500, 527, 595, 604, 620, 700, 755, 775, 850, 868, 875, 1054, 1057, 1085, 1190, 1510, 1550, 1700, 1750, 2108, 2114, 2125, 2170, 2380, 2567, 2635, 2975, 3020, 3100, 3500, 3689, 3775, 3875, 4228, 4250, 4340, 4681, 5134, 5270, 5285, 5425, 5950, 7378, 7550, 7750, 8500, 9362, 10268, 10540, 10570, 10850, 11900, 12835, 13175, 14756, 14875, 15100, 15500, 17969, 18445, 18724, 18875, 21140, 21700, 23405, 25670, 26350, 26425, 27125, 29750, 32767, 35938, 36890, 37750, 46810, 51340, 52700, 52850, 54250, 59500, 64175, 65534, 65875, 71876, 73780, 75500, 79577, 89845, 92225, 93620, 105700, 108500, 117025, 128350, 131068, 131750, 132125, 159154, 163835, 179690, 184450, 234050, 256700, 263500, 264250, 318308, 320875, 327670, 359380, 368900, 397885, 449225, 461125, 468100, 528500, 557039, 585125, 641750, 655340, 795770, 819175, 898450, 922250, 1114078, 1170250, 1283500, 1591540, 1638350, 1796900, 1844500, 1989425, 2228156, 2246125, 2340500, 2785195, 3276700, 3978850, 4095875, 4492250, 5570390, 7957700, 8191750, 8984500, 9947125, 11140780, 13925975, 16383500, 19894250, 27851950, 39788500, 55703900, 69629875, 139259750, 278519500]

約数ペア:

[(1, 278519500), (2, 139259750), (4, 69629875), (5, 55703900), (7, 39788500), (10, 27851950), (14, 19894250), (17, 16383500), (20, 13925975), (25, 11140780), (28, 9947125), (31, 8984500), (34, 8191750), (35, 7957700), (50, 5570390), (62, 4492250), (68, 4095875), (70, 3978850), (85, 3276700), (100, 2785195), (119, 2340500), (124, 2246125), (125, 2228156), (140, 1989425), (151, 1844500), (155, 1796900), (170, 1638350), (175, 1591540), (217, 1283500), (238, 1170250), (250, 1114078), (302, 922250), (310, 898450), (340, 819175), (350, 795770), (425, 655340), (434, 641750), (476, 585125), (500, 557039), (527, 528500), (595, 468100), (604, 461125), (620, 449225), (700, 397885), (755, 368900), (775, 359380), (850, 327670), (868, 320875), (875, 318308), (1054, 264250), (1057, 263500), (1085, 256700), (1190, 234050), (1510, 184450), (1550, 179690), (1700, 163835), (1750, 159154), (2108, 132125), (2114, 131750), (2125, 131068), (2170, 128350), (2380, 117025), (2567, 108500), (2635, 105700), (2975, 93620), (3020, 92225), (3100, 89845), (3500, 79577), (3689, 75500), (3775, 73780), (3875, 71876), (4228, 65875), (4250, 65534), (4340, 64175), (4681, 59500), (5134, 54250), (5270, 52850), (5285, 52700), (5425, 51340), (5950, 46810), (7378, 37750), (7550, 36890), (7750, 35938), (8500, 32767), (9362, 29750), (10268, 27125), (10540, 26425), (10570, 26350), (10850, 25670), (11900, 23405), (12835, 21700), (13175, 21140), (14756, 18875), (14875, 18724), (15100, 18445), (15500, 17969)]