80053720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 184680000

約数和(自身を除く): 104626280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 113, 178, 199, 226, 356, 398, 445, 452, 565, 712, 796, 890, 904, 995, 1130, 1592, 1780, 1990, 2260, 3560, 3980, 4520, 7960, 10057, 17711, 20114, 22487, 35422, 40228, 44974, 50285, 70844, 80456, 88555, 89948, 100570, 112435, 141688, 177110, 179896, 201140, 224870, 354220, 402280, 449740, 708440, 899480, 2001343, 4002686, 8005372, 10006715, 16010744, 20013430, 40026860, 80053720]

約数ペア:

[(1, 80053720), (2, 40026860), (4, 20013430), (5, 16010744), (8, 10006715), (10, 8005372), (20, 4002686), (40, 2001343), (89, 899480), (113, 708440), (178, 449740), (199, 402280), (226, 354220), (356, 224870), (398, 201140), (445, 179896), (452, 177110), (565, 141688), (712, 112435), (796, 100570), (890, 89948), (904, 88555), (995, 80456), (1130, 70844), (1592, 50285), (1780, 44974), (1990, 40228), (2260, 35422), (3560, 22487), (3980, 20114), (4520, 17711), (7960, 10057)]