201723640

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{12703}}^1$

素因数の和:13111

約数の個数: 32

約数和(自身を含む): 455057280

約数和(自身を除く): 253333640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 12703, 15880, 25406, 50812, 63515, 101624, 127030, 254060, 508120, 5043091, 10086182, 20172364, 25215455, 40344728, 50430910, 100861820, 201723640]

約数ペア:

[(1, 201723640), (2, 100861820), (4, 50430910), (5, 40344728), (8, 25215455), (10, 20172364), (20, 10086182), (40, 5043091), (397, 508120), (794, 254060), (1588, 127030), (1985, 101624), (3176, 63515), (3970, 50812), (7940, 25406), (12703, 15880)]