20340160120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{462697}}^1$

素因数の和:462872

約数の個数: 64

約数和(自身を含む): 52636524480

約数和(自身を除く): 32296364360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 2198, 3140, 4396, 5495, 6280, 8792, 10990, 21980, 43960, 462697, 925394, 1850788, 2313485, 3238879, 3701576, 4626970, 6477758, 9253940, 12955516, 16194395, 18507880, 25911032, 32388790, 64777580, 72643429, 129555160, 145286858, 290573716, 363217145, 508504003, 581147432, 726434290, 1017008006, 1452868580, 2034016012, 2542520015, 2905737160, 4068032024, 5085040030, 10170080060, 20340160120]

約数ペア:

[(1, 20340160120), (2, 10170080060), (4, 5085040030), (5, 4068032024), (7, 2905737160), (8, 2542520015), (10, 2034016012), (14, 1452868580), (20, 1017008006), (28, 726434290), (35, 581147432), (40, 508504003), (56, 363217145), (70, 290573716), (140, 145286858), (157, 129555160), (280, 72643429), (314, 64777580), (628, 32388790), (785, 25911032), (1099, 18507880), (1256, 16194395), (1570, 12955516), (2198, 9253940), (3140, 6477758), (4396, 4626970), (5495, 3701576), (6280, 3238879), (8792, 2313485), (10990, 1850788), (21980, 925394), (43960, 462697)]