18968620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{571}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 43819776

約数和(自身を除く): 24851156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 571, 604, 755, 1142, 1510, 1661, 2284, 2855, 3020, 3322, 5710, 6281, 6644, 8305, 11420, 12562, 16610, 25124, 31405, 33220, 62810, 86221, 125620, 172442, 344884, 431105, 862210, 948431, 1724420, 1896862, 3793724, 4742155, 9484310, 18968620]

約数ペア:

[(1, 18968620), (2, 9484310), (4, 4742155), (5, 3793724), (10, 1896862), (11, 1724420), (20, 948431), (22, 862210), (44, 431105), (55, 344884), (110, 172442), (151, 125620), (220, 86221), (302, 62810), (571, 33220), (604, 31405), (755, 25124), (1142, 16610), (1510, 12562), (1661, 11420), (2284, 8305), (2855, 6644), (3020, 6281), (3322, 5710)]