82218880

素因数分解:

$2^7\times 5^1\times {\mathrm{128467}}^1$

素因数の和:128486

約数の個数: 32

約数和(自身を含む): 196556040

約数和(自身を除く): 114337160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 128467, 256934, 513868, 642335, 1027736, 1284670, 2055472, 2569340, 4110944, 5138680, 8221888, 10277360, 16443776, 20554720, 41109440, 82218880]

約数ペア:

[(1, 82218880), (2, 41109440), (4, 20554720), (5, 16443776), (8, 10277360), (10, 8221888), (16, 5138680), (20, 4110944), (32, 2569340), (40, 2055472), (64, 1284670), (80, 1027736), (128, 642335), (160, 513868), (320, 256934), (640, 128467)]