40321808

素因数分解:

$2^4\times {\mathrm{991}}^1\times {\mathrm{2543}}^1$

素因数の和:3542

約数の個数: 20

約数和(自身を含む): 78233088

約数和(自身を除く): 37911280

約数列:

[1, 2, 4, 8, 16, 991, 1982, 2543, 3964, 5086, 7928, 10172, 15856, 20344, 40688, 2520113, 5040226, 10080452, 20160904, 40321808]

約数ペア:

[(1, 40321808), (2, 20160904), (4, 10080452), (8, 5040226), (16, 2520113), (991, 40688), (1982, 20344), (2543, 15856), (3964, 10172), (5086, 7928)]