18428760

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 192

約数和(自身を含む): 70087680

約数和(自身を除く): 51658920

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, 71, 72, 84, 90, 103, 105, 120, 126, 140, 142, 168, 180, 206, 210, 213, 252, 280, 284, 309, 315, 355, 360, 412, 420, 426, 497, 504, 515, 568, 618, 630, 639, 710, 721, 824, 840, 852, 927, 994, 1030, 1065, 1236, 1260, 1278, 1420, 1442, 1491, 1545, 1704, 1854, 1988, 2060, 2130, 2163, 2472, 2485, 2520, 2556, 2840, 2884, 2982, 3090, 3195, 3605, 3708, 3976, 4120, 4260, 4326, 4473, 4635, 4970, 5112, 5768, 5964, 6180, 6390, 6489, 7210, 7313, 7416, 7455, 8520, 8652, 8946, 9270, 9940, 10815, 11928, 12360, 12780, 12978, 14420, 14626, 14910, 17304, 17892, 18540, 19880, 21630, 21939, 22365, 25560, 25956, 28840, 29252, 29820, 32445, 35784, 36565, 37080, 43260, 43878, 44730, 51191, 51912, 58504, 59640, 64890, 65817, 73130, 86520, 87756, 89460, 102382, 109695, 129780, 131634, 146260, 153573, 175512, 178920, 204764, 219390, 255955, 259560, 263268, 292520, 307146, 329085, 409528, 438780, 460719, 511910, 526536, 614292, 658170, 767865, 877560, 921438, 1023820, 1228584, 1316340, 1535730, 1842876, 2047640, 2303595, 2632680, 3071460, 3685752, 4607190, 6142920, 9214380, 18428760]

約数ペア:

[(1, 18428760), (2, 9214380), (3, 6142920), (4, 4607190), (5, 3685752), (6, 3071460), (7, 2632680), (8, 2303595), (9, 2047640), (10, 1842876), (12, 1535730), (14, 1316340), (15, 1228584), (18, 1023820), (20, 921438), (21, 877560), (24, 767865), (28, 658170), (30, 614292), (35, 526536), (36, 511910), (40, 460719), (42, 438780), (45, 409528), (56, 329085), (60, 307146), (63, 292520), (70, 263268), (71, 259560), (72, 255955), (84, 219390), (90, 204764), (103, 178920), (105, 175512), (120, 153573), (126, 146260), (140, 131634), (142, 129780), (168, 109695), (180, 102382), (206, 89460), (210, 87756), (213, 86520), (252, 73130), (280, 65817), (284, 64890), (309, 59640), (315, 58504), (355, 51912), (360, 51191), (412, 44730), (420, 43878), (426, 43260), (497, 37080), (504, 36565), (515, 35784), (568, 32445), (618, 29820), (630, 29252), (639, 28840), (710, 25956), (721, 25560), (824, 22365), (840, 21939), (852, 21630), (927, 19880), (994, 18540), (1030, 17892), (1065, 17304), (1236, 14910), (1260, 14626), (1278, 14420), (1420, 12978), (1442, 12780), (1491, 12360), (1545, 11928), (1704, 10815), (1854, 9940), (1988, 9270), (2060, 8946), (2130, 8652), (2163, 8520), (2472, 7455), (2485, 7416), (2520, 7313), (2556, 7210), (2840, 6489), (2884, 6390), (2982, 6180), (3090, 5964), (3195, 5768), (3605, 5112), (3708, 4970), (3976, 4635), (4120, 4473), (4260, 4326)]