80091980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1109}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 176783040

約数和(自身を除く): 96691060

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 157, 230, 314, 460, 628, 785, 1109, 1570, 2218, 3140, 3611, 4436, 5545, 7222, 11090, 14444, 18055, 22180, 25507, 36110, 51014, 72220, 102028, 127535, 174113, 255070, 348226, 510140, 696452, 870565, 1741130, 3482260, 4004599, 8009198, 16018396, 20022995, 40045990, 80091980]

約数ペア:

[(1, 80091980), (2, 40045990), (4, 20022995), (5, 16018396), (10, 8009198), (20, 4004599), (23, 3482260), (46, 1741130), (92, 870565), (115, 696452), (157, 510140), (230, 348226), (314, 255070), (460, 174113), (628, 127535), (785, 102028), (1109, 72220), (1570, 51014), (2218, 36110), (3140, 25507), (3611, 22180), (4436, 18055), (5545, 14444), (7222, 11090)]