2021176520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{199721}}^1$

素因数の和:199766

約数の個数: 64

約数和(自身を含む): 5176794240

約数和(自身を除く): 3155617720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 199721, 399442, 798884, 998605, 1597768, 1997210, 2196931, 3994420, 4393862, 4593583, 7988840, 8787724, 9187166, 10984655, 17575448, 18374332, 21969310, 22967915, 36748664, 43938620, 45935830, 50529413, 87877240, 91871660, 101058826, 183743320, 202117652, 252647065, 404235304, 505294130, 1010588260, 2021176520]

約数ペア:

[(1, 2021176520), (2, 1010588260), (4, 505294130), (5, 404235304), (8, 252647065), (10, 202117652), (11, 183743320), (20, 101058826), (22, 91871660), (23, 87877240), (40, 50529413), (44, 45935830), (46, 43938620), (55, 36748664), (88, 22967915), (92, 21969310), (110, 18374332), (115, 17575448), (184, 10984655), (220, 9187166), (230, 8787724), (253, 7988840), (440, 4593583), (460, 4393862), (506, 3994420), (920, 2196931), (1012, 1997210), (1265, 1597768), (2024, 998605), (2530, 798884), (5060, 399442), (10120, 199721)]