81968820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17293}}^1$

素因数の和:17384

約数の個数: 48

約数和(自身を含む): 232431360

約数和(自身を除く): 150462540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4740, 17293, 34586, 51879, 69172, 86465, 103758, 172930, 207516, 259395, 345860, 518790, 1037580, 1366147, 2732294, 4098441, 5464588, 6830735, 8196882, 13661470, 16393764, 20492205, 27322940, 40984410, 81968820]

約数ペア:

[(1, 81968820), (2, 40984410), (3, 27322940), (4, 20492205), (5, 16393764), (6, 13661470), (10, 8196882), (12, 6830735), (15, 5464588), (20, 4098441), (30, 2732294), (60, 1366147), (79, 1037580), (158, 518790), (237, 345860), (316, 259395), (395, 207516), (474, 172930), (790, 103758), (948, 86465), (1185, 69172), (1580, 51879), (2370, 34586), (4740, 17293)]