19608080

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1871}}^1$

素因数の和:2015

約数の個数: 40

約数和(自身を含む): 45961344

約数和(自身を除く): 26353264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1871, 2096, 2620, 3742, 5240, 7484, 9355, 10480, 14968, 18710, 29936, 37420, 74840, 149680, 245101, 490202, 980404, 1225505, 1960808, 2451010, 3921616, 4902020, 9804040, 19608080]

約数ペア:

[(1, 19608080), (2, 9804040), (4, 4902020), (5, 3921616), (8, 2451010), (10, 1960808), (16, 1225505), (20, 980404), (40, 490202), (80, 245101), (131, 149680), (262, 74840), (524, 37420), (655, 29936), (1048, 18710), (1310, 14968), (1871, 10480), (2096, 9355), (2620, 7484), (3742, 5240)]