18947880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:200

約数の個数: 192

約数和(自身を含む): 72034560

約数和(自身を除く): 53086680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 73, 84, 90, 103, 105, 120, 126, 140, 146, 168, 180, 206, 210, 219, 252, 280, 292, 309, 315, 360, 365, 412, 420, 438, 504, 511, 515, 584, 618, 630, 657, 721, 730, 824, 840, 876, 927, 1022, 1030, 1095, 1236, 1260, 1314, 1442, 1460, 1533, 1545, 1752, 1854, 2044, 2060, 2163, 2190, 2472, 2520, 2555, 2628, 2884, 2920, 3066, 3090, 3285, 3605, 3708, 4088, 4120, 4326, 4380, 4599, 4635, 5110, 5256, 5768, 6132, 6180, 6489, 6570, 7210, 7416, 7519, 7665, 8652, 8760, 9198, 9270, 10220, 10815, 12264, 12360, 12978, 13140, 14420, 15038, 15330, 17304, 18396, 18540, 20440, 21630, 22557, 22995, 25956, 26280, 28840, 30076, 30660, 32445, 36792, 37080, 37595, 43260, 45114, 45990, 51912, 52633, 60152, 61320, 64890, 67671, 75190, 86520, 90228, 91980, 105266, 112785, 129780, 135342, 150380, 157899, 180456, 183960, 210532, 225570, 259560, 263165, 270684, 300760, 315798, 338355, 421064, 451140, 473697, 526330, 541368, 631596, 676710, 789495, 902280, 947394, 1052660, 1263192, 1353420, 1578990, 1894788, 2105320, 2368485, 2706840, 3157980, 3789576, 4736970, 6315960, 9473940, 18947880]

約数ペア:

[(1, 18947880), (2, 9473940), (3, 6315960), (4, 4736970), (5, 3789576), (6, 3157980), (7, 2706840), (8, 2368485), (9, 2105320), (10, 1894788), (12, 1578990), (14, 1353420), (15, 1263192), (18, 1052660), (20, 947394), (21, 902280), (24, 789495), (28, 676710), (30, 631596), (35, 541368), (36, 526330), (40, 473697), (42, 451140), (45, 421064), (56, 338355), (60, 315798), (63, 300760), (70, 270684), (72, 263165), (73, 259560), (84, 225570), (90, 210532), (103, 183960), (105, 180456), (120, 157899), (126, 150380), (140, 135342), (146, 129780), (168, 112785), (180, 105266), (206, 91980), (210, 90228), (219, 86520), (252, 75190), (280, 67671), (292, 64890), (309, 61320), (315, 60152), (360, 52633), (365, 51912), (412, 45990), (420, 45114), (438, 43260), (504, 37595), (511, 37080), (515, 36792), (584, 32445), (618, 30660), (630, 30076), (657, 28840), (721, 26280), (730, 25956), (824, 22995), (840, 22557), (876, 21630), (927, 20440), (1022, 18540), (1030, 18396), (1095, 17304), (1236, 15330), (1260, 15038), (1314, 14420), (1442, 13140), (1460, 12978), (1533, 12360), (1545, 12264), (1752, 10815), (1854, 10220), (2044, 9270), (2060, 9198), (2163, 8760), (2190, 8652), (2472, 7665), (2520, 7519), (2555, 7416), (2628, 7210), (2884, 6570), (2920, 6489), (3066, 6180), (3090, 6132), (3285, 5768), (3605, 5256), (3708, 5110), (4088, 4635), (4120, 4599), (4326, 4380)]