20210904140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{769}}^1\times {\mathrm{827}}^1$

素因数の和:1839

約数の個数: 96

約数和(自身を含む): 48842196480

約数和(自身を除く): 28631292340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 769, 827, 908, 1135, 1538, 1589, 1654, 2270, 3076, 3178, 3308, 3845, 4135, 4540, 5383, 5789, 6356, 7690, 7945, 8270, 10766, 11578, 15380, 15890, 16540, 21532, 23156, 26915, 28945, 31780, 53830, 57890, 107660, 115780, 174563, 187729, 349126, 375458, 635963, 698252, 750916, 872815, 938645, 1221941, 1271926, 1314103, 1745630, 1877290, 2443882, 2543852, 2628206, 3179815, 3491260, 3754580, 4451741, 4887764, 5256412, 6109705, 6359630, 6570515, 8903482, 12219410, 12719260, 13141030, 17806964, 22258705, 24438820, 26282060, 44517410, 89034820, 144363601, 288727202, 577454404, 721818005, 1010545207, 1443636010, 2021090414, 2887272020, 4042180828, 5052726035, 10105452070, 20210904140]

約数ペア:

[(1, 20210904140), (2, 10105452070), (4, 5052726035), (5, 4042180828), (7, 2887272020), (10, 2021090414), (14, 1443636010), (20, 1010545207), (28, 721818005), (35, 577454404), (70, 288727202), (140, 144363601), (227, 89034820), (454, 44517410), (769, 26282060), (827, 24438820), (908, 22258705), (1135, 17806964), (1538, 13141030), (1589, 12719260), (1654, 12219410), (2270, 8903482), (3076, 6570515), (3178, 6359630), (3308, 6109705), (3845, 5256412), (4135, 4887764), (4540, 4451741), (5383, 3754580), (5789, 3491260), (6356, 3179815), (7690, 2628206), (7945, 2543852), (8270, 2443882), (10766, 1877290), (11578, 1745630), (15380, 1314103), (15890, 1271926), (16540, 1221941), (21532, 938645), (23156, 872815), (26915, 750916), (28945, 698252), (31780, 635963), (53830, 375458), (57890, 349126), (107660, 187729), (115780, 174563)]