205108400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 619960320

約数和(自身を除く): 414851920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 31, 34, 35, 40, 50, 56, 62, 68, 70, 80, 85, 100, 112, 119, 124, 136, 139, 140, 155, 170, 175, 200, 217, 238, 248, 272, 278, 280, 310, 340, 350, 400, 425, 434, 476, 496, 527, 556, 560, 595, 620, 680, 695, 700, 775, 850, 868, 952, 973, 1054, 1085, 1112, 1190, 1240, 1360, 1390, 1400, 1550, 1700, 1736, 1904, 1946, 2108, 2170, 2224, 2363, 2380, 2480, 2635, 2780, 2800, 2975, 3100, 3400, 3472, 3475, 3689, 3892, 4216, 4309, 4340, 4726, 4760, 4865, 5270, 5425, 5560, 5950, 6200, 6800, 6950, 7378, 7784, 8432, 8618, 8680, 9452, 9520, 9730, 10540, 10850, 11120, 11815, 11900, 12400, 13175, 13900, 14756, 15568, 16541, 17236, 17360, 18445, 18904, 19460, 21080, 21545, 21700, 23630, 23800, 24325, 26350, 27800, 29512, 30163, 33082, 34472, 36890, 37808, 38920, 42160, 43090, 43400, 47260, 47600, 48650, 52700, 55600, 59024, 59075, 60326, 66164, 68944, 73253, 73780, 77840, 82705, 86180, 86800, 92225, 94520, 97300, 105400, 107725, 118150, 120652, 132328, 146506, 147560, 150815, 165410, 172360, 184450, 189040, 194600, 210800, 215450, 236300, 241304, 264656, 293012, 295120, 301630, 330820, 344720, 366265, 368900, 389200, 413525, 430900, 472600, 482608, 512771, 586024, 603260, 661640, 732530, 737800, 754075, 827050, 861800, 945200, 1025542, 1172048, 1206520, 1323280, 1465060, 1475600, 1508150, 1654100, 1723600, 1831325, 2051084, 2413040, 2563855, 2930120, 3016300, 3308200, 3662650, 4102168, 5127710, 5860240, 6032600, 6616400, 7325300, 8204336, 10255420, 12065200, 12819275, 14650600, 20510840, 25638550, 29301200, 41021680, 51277100, 102554200, 205108400]

約数ペア:

[(1, 205108400), (2, 102554200), (4, 51277100), (5, 41021680), (7, 29301200), (8, 25638550), (10, 20510840), (14, 14650600), (16, 12819275), (17, 12065200), (20, 10255420), (25, 8204336), (28, 7325300), (31, 6616400), (34, 6032600), (35, 5860240), (40, 5127710), (50, 4102168), (56, 3662650), (62, 3308200), (68, 3016300), (70, 2930120), (80, 2563855), (85, 2413040), (100, 2051084), (112, 1831325), (119, 1723600), (124, 1654100), (136, 1508150), (139, 1475600), (140, 1465060), (155, 1323280), (170, 1206520), (175, 1172048), (200, 1025542), (217, 945200), (238, 861800), (248, 827050), (272, 754075), (278, 737800), (280, 732530), (310, 661640), (340, 603260), (350, 586024), (400, 512771), (425, 482608), (434, 472600), (476, 430900), (496, 413525), (527, 389200), (556, 368900), (560, 366265), (595, 344720), (620, 330820), (680, 301630), (695, 295120), (700, 293012), (775, 264656), (850, 241304), (868, 236300), (952, 215450), (973, 210800), (1054, 194600), (1085, 189040), (1112, 184450), (1190, 172360), (1240, 165410), (1360, 150815), (1390, 147560), (1400, 146506), (1550, 132328), (1700, 120652), (1736, 118150), (1904, 107725), (1946, 105400), (2108, 97300), (2170, 94520), (2224, 92225), (2363, 86800), (2380, 86180), (2480, 82705), (2635, 77840), (2780, 73780), (2800, 73253), (2975, 68944), (3100, 66164), (3400, 60326), (3472, 59075), (3475, 59024), (3689, 55600), (3892, 52700), (4216, 48650), (4309, 47600), (4340, 47260), (4726, 43400), (4760, 43090), (4865, 42160), (5270, 38920), (5425, 37808), (5560, 36890), (5950, 34472), (6200, 33082), (6800, 30163), (6950, 29512), (7378, 27800), (7784, 26350), (8432, 24325), (8618, 23800), (8680, 23630), (9452, 21700), (9520, 21545), (9730, 21080), (10540, 19460), (10850, 18904), (11120, 18445), (11815, 17360), (11900, 17236), (12400, 16541), (13175, 15568), (13900, 14756)]