79803640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1109}}^1$

素因数の和:1384

約数の個数: 64

約数和(自身を含む): 206193600

約数和(自身を除く): 126389960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1109, 1285, 1799, 2056, 2218, 2570, 3598, 4436, 5140, 5545, 7196, 7763, 8872, 8995, 10280, 11090, 14392, 15526, 17990, 22180, 31052, 35980, 38815, 44360, 62104, 71960, 77630, 155260, 285013, 310520, 570026, 1140052, 1425065, 1995091, 2280104, 2850130, 3990182, 5700260, 7980364, 9975455, 11400520, 15960728, 19950910, 39901820, 79803640]

約数ペア:

[(1, 79803640), (2, 39901820), (4, 19950910), (5, 15960728), (7, 11400520), (8, 9975455), (10, 7980364), (14, 5700260), (20, 3990182), (28, 2850130), (35, 2280104), (40, 1995091), (56, 1425065), (70, 1140052), (140, 570026), (257, 310520), (280, 285013), (514, 155260), (1028, 77630), (1109, 71960), (1285, 62104), (1799, 44360), (2056, 38815), (2218, 35980), (2570, 31052), (3598, 22180), (4436, 17990), (5140, 15526), (5545, 14392), (7196, 11090), (7763, 10280), (8872, 8995)]