40019840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{8933}}^1$

素因数の和:8959

約数の個数: 64

約数和(自身を含む): 109352160

約数和(自身を除く): 69332320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 8933, 17866, 35732, 44665, 62531, 71464, 89330, 125062, 142928, 178660, 250124, 285856, 312655, 357320, 500248, 571712, 625310, 714640, 1000496, 1143424, 1250620, 1429280, 2000992, 2501240, 2858560, 4001984, 5002480, 5717120, 8003968, 10004960, 20009920, 40019840]

約数ペア:

[(1, 40019840), (2, 20009920), (4, 10004960), (5, 8003968), (7, 5717120), (8, 5002480), (10, 4001984), (14, 2858560), (16, 2501240), (20, 2000992), (28, 1429280), (32, 1250620), (35, 1143424), (40, 1000496), (56, 714640), (64, 625310), (70, 571712), (80, 500248), (112, 357320), (128, 312655), (140, 285856), (160, 250124), (224, 178660), (280, 142928), (320, 125062), (448, 89330), (560, 71464), (640, 62531), (896, 44665), (1120, 35732), (2240, 17866), (4480, 8933)]