77997780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{601}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 273471744

約数和(自身を除く): 195473964

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 103, 105, 126, 140, 180, 206, 210, 252, 309, 315, 412, 420, 515, 601, 618, 630, 721, 927, 1030, 1202, 1236, 1260, 1442, 1545, 1803, 1854, 2060, 2163, 2404, 2884, 3005, 3090, 3605, 3606, 3708, 4207, 4326, 4635, 5409, 6010, 6180, 6489, 7210, 7212, 8414, 8652, 9015, 9270, 10815, 10818, 12020, 12621, 12978, 14420, 16828, 18030, 18540, 21035, 21630, 21636, 25242, 25956, 27045, 32445, 36060, 37863, 42070, 43260, 50484, 54090, 61903, 63105, 64890, 75726, 84140, 108180, 123806, 126210, 129780, 151452, 185709, 189315, 247612, 252420, 309515, 371418, 378630, 433321, 557127, 619030, 742836, 757260, 866642, 928545, 1114254, 1238060, 1299963, 1733284, 1857090, 2166605, 2228508, 2599926, 2785635, 3714180, 3899889, 4333210, 5199852, 5571270, 6499815, 7799778, 8666420, 11142540, 12999630, 15599556, 19499445, 25999260, 38998890, 77997780]

約数ペア:

[(1, 77997780), (2, 38998890), (3, 25999260), (4, 19499445), (5, 15599556), (6, 12999630), (7, 11142540), (9, 8666420), (10, 7799778), (12, 6499815), (14, 5571270), (15, 5199852), (18, 4333210), (20, 3899889), (21, 3714180), (28, 2785635), (30, 2599926), (35, 2228508), (36, 2166605), (42, 1857090), (45, 1733284), (60, 1299963), (63, 1238060), (70, 1114254), (84, 928545), (90, 866642), (103, 757260), (105, 742836), (126, 619030), (140, 557127), (180, 433321), (206, 378630), (210, 371418), (252, 309515), (309, 252420), (315, 247612), (412, 189315), (420, 185709), (515, 151452), (601, 129780), (618, 126210), (630, 123806), (721, 108180), (927, 84140), (1030, 75726), (1202, 64890), (1236, 63105), (1260, 61903), (1442, 54090), (1545, 50484), (1803, 43260), (1854, 42070), (2060, 37863), (2163, 36060), (2404, 32445), (2884, 27045), (3005, 25956), (3090, 25242), (3605, 21636), (3606, 21630), (3708, 21035), (4207, 18540), (4326, 18030), (4635, 16828), (5409, 14420), (6010, 12978), (6180, 12621), (6489, 12020), (7210, 10818), (7212, 10815), (8414, 9270), (8652, 9015)]