18681990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6997}}^1$

素因数の和:7096

約数の個数: 32

約数和(自身を含む): 45347040

約数和(自身を除く): 26665050

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 6997, 13994, 20991, 34985, 41982, 69970, 104955, 209910, 622733, 1245466, 1868199, 3113665, 3736398, 6227330, 9340995, 18681990]

約数ペア:

[(1, 18681990), (2, 9340995), (3, 6227330), (5, 3736398), (6, 3113665), (10, 1868199), (15, 1245466), (30, 622733), (89, 209910), (178, 104955), (267, 69970), (445, 41982), (534, 34985), (890, 20991), (1335, 13994), (2670, 6997)]