215883640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{771013}}^1$

素因数の和:771031

約数の個数: 32

約数和(自身を含む): 555130080

約数和(自身を除く): 339246440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 771013, 1542026, 3084052, 3855065, 5397091, 6168104, 7710130, 10794182, 15420260, 21588364, 26985455, 30840520, 43176728, 53970910, 107941820, 215883640]

約数ペア:

[(1, 215883640), (2, 107941820), (4, 53970910), (5, 43176728), (7, 30840520), (8, 26985455), (10, 21588364), (14, 15420260), (20, 10794182), (28, 7710130), (35, 6168104), (40, 5397091), (56, 3855065), (70, 3084052), (140, 1542026), (280, 771013)]