919999920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{547619}}^1$

素因数の和:547642

約数の個数: 80

約数和(自身を含む): 3259434240

約数和(自身を除く): 2339434320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 547619, 1095238, 1642857, 2190476, 2738095, 3285714, 3833333, 4380952, 5476190, 6571428, 7666666, 8214285, 8761904, 10952380, 11499999, 13142856, 15333332, 16428570, 19166665, 21904760, 22999998, 26285712, 30666664, 32857140, 38333330, 43809520, 45999996, 57499995, 61333328, 65714280, 76666660, 91999992, 114999990, 131428560, 153333320, 183999984, 229999980, 306666640, 459999960, 919999920]

約数ペア:

[(1, 919999920), (2, 459999960), (3, 306666640), (4, 229999980), (5, 183999984), (6, 153333320), (7, 131428560), (8, 114999990), (10, 91999992), (12, 76666660), (14, 65714280), (15, 61333328), (16, 57499995), (20, 45999996), (21, 43809520), (24, 38333330), (28, 32857140), (30, 30666664), (35, 26285712), (40, 22999998), (42, 21904760), (48, 19166665), (56, 16428570), (60, 15333332), (70, 13142856), (80, 11499999), (84, 10952380), (105, 8761904), (112, 8214285), (120, 7666666), (140, 6571428), (168, 5476190), (210, 4380952), (240, 3833333), (280, 3285714), (336, 2738095), (420, 2190476), (560, 1642857), (840, 1095238), (1680, 547619)]