1878660

素因数分解:

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

素因数の和:103

約数の個数: 144

約数和(自身を含む): 6894720

約数和(自身を除く): 5016060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 71, 84, 90, 98, 105, 108, 126, 135, 140, 142, 147, 180, 189, 196, 210, 213, 245, 252, 270, 284, 294, 315, 355, 378, 420, 426, 441, 490, 497, 540, 588, 630, 639, 710, 735, 756, 852, 882, 945, 980, 994, 1065, 1260, 1278, 1323, 1420, 1470, 1491, 1764, 1890, 1917, 1988, 2130, 2205, 2485, 2556, 2646, 2940, 2982, 3195, 3479, 3780, 3834, 4260, 4410, 4473, 4970, 5292, 5964, 6390, 6615, 6958, 7455, 7668, 8820, 8946, 9585, 9940, 10437, 12780, 13230, 13419, 13916, 14910, 17395, 17892, 19170, 20874, 22365, 26460, 26838, 29820, 31311, 34790, 38340, 41748, 44730, 52185, 53676, 62622, 67095, 69580, 89460, 93933, 104370, 125244, 134190, 156555, 187866, 208740, 268380, 313110, 375732, 469665, 626220, 939330, 1878660]

約数ペア:

[(1, 1878660), (2, 939330), (3, 626220), (4, 469665), (5, 375732), (6, 313110), (7, 268380), (9, 208740), (10, 187866), (12, 156555), (14, 134190), (15, 125244), (18, 104370), (20, 93933), (21, 89460), (27, 69580), (28, 67095), (30, 62622), (35, 53676), (36, 52185), (42, 44730), (45, 41748), (49, 38340), (54, 34790), (60, 31311), (63, 29820), (70, 26838), (71, 26460), (84, 22365), (90, 20874), (98, 19170), (105, 17892), (108, 17395), (126, 14910), (135, 13916), (140, 13419), (142, 13230), (147, 12780), (180, 10437), (189, 9940), (196, 9585), (210, 8946), (213, 8820), (245, 7668), (252, 7455), (270, 6958), (284, 6615), (294, 6390), (315, 5964), (355, 5292), (378, 4970), (420, 4473), (426, 4410), (441, 4260), (490, 3834), (497, 3780), (540, 3479), (588, 3195), (630, 2982), (639, 2940), (710, 2646), (735, 2556), (756, 2485), (852, 2205), (882, 2130), (945, 1988), (980, 1917), (994, 1890), (1065, 1764), (1260, 1491), (1278, 1470), (1323, 1420)]