18379990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 34810560

約数和(自身を除く): 16430570

約数列:

[1, 2, 5, 10, 23, 46, 115, 157, 230, 314, 509, 785, 1018, 1570, 2545, 3611, 5090, 7222, 11707, 18055, 23414, 36110, 58535, 79913, 117070, 159826, 399565, 799130, 1837999, 3675998, 9189995, 18379990]

約数ペア:

[(1, 18379990), (2, 9189995), (5, 3675998), (10, 1837999), (23, 799130), (46, 399565), (115, 159826), (157, 117070), (230, 79913), (314, 58535), (509, 36110), (785, 23414), (1018, 18055), (1570, 11707), (2545, 7222), (3611, 5090)]