39901820

素因数分解:

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

素因数の和:1382

約数の個数: 48

約数和(自身を含む): 96223680

約数和(自身を除く): 56321860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1109, 1285, 1799, 2218, 2570, 3598, 4436, 5140, 5545, 7196, 7763, 8995, 11090, 15526, 17990, 22180, 31052, 35980, 38815, 77630, 155260, 285013, 570026, 1140052, 1425065, 1995091, 2850130, 3990182, 5700260, 7980364, 9975455, 19950910, 39901820]

約数ペア:

[(1, 39901820), (2, 19950910), (4, 9975455), (5, 7980364), (7, 5700260), (10, 3990182), (14, 2850130), (20, 1995091), (28, 1425065), (35, 1140052), (70, 570026), (140, 285013), (257, 155260), (514, 77630), (1028, 38815), (1109, 35980), (1285, 31052), (1799, 22180), (2218, 17990), (2570, 15526), (3598, 11090), (4436, 8995), (5140, 7763), (5545, 7196)]