71664640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13997}}^1$

素因数の和:14022

約数の個数: 44

約数和(自身を含む): 171923436

約数和(自身を除く): 100258796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 13997, 27994, 55988, 69985, 111976, 139970, 223952, 279940, 447904, 559880, 895808, 1119760, 1791616, 2239520, 3583232, 4479040, 7166464, 8958080, 14332928, 17916160, 35832320, 71664640]

約数ペア:

[(1, 71664640), (2, 35832320), (4, 17916160), (5, 14332928), (8, 8958080), (10, 7166464), (16, 4479040), (20, 3583232), (32, 2239520), (40, 1791616), (64, 1119760), (80, 895808), (128, 559880), (160, 447904), (256, 279940), (320, 223952), (512, 139970), (640, 111976), (1024, 69985), (1280, 55988), (2560, 27994), (5120, 13997)]