20746290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2141}}^1$

素因数の和:2187

約数の個数: 64

約数和(自身を含む): 55520640

約数和(自身を除く): 34774350

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 38, 51, 57, 85, 95, 102, 114, 170, 190, 255, 285, 323, 510, 570, 646, 969, 1615, 1938, 2141, 3230, 4282, 4845, 6423, 9690, 10705, 12846, 21410, 32115, 36397, 40679, 64230, 72794, 81358, 109191, 122037, 181985, 203395, 218382, 244074, 363970, 406790, 545955, 610185, 691543, 1091910, 1220370, 1383086, 2074629, 3457715, 4149258, 6915430, 10373145, 20746290]

約数ペア:

[(1, 20746290), (2, 10373145), (3, 6915430), (5, 4149258), (6, 3457715), (10, 2074629), (15, 1383086), (17, 1220370), (19, 1091910), (30, 691543), (34, 610185), (38, 545955), (51, 406790), (57, 363970), (85, 244074), (95, 218382), (102, 203395), (114, 181985), (170, 122037), (190, 109191), (255, 81358), (285, 72794), (323, 64230), (510, 40679), (570, 36397), (646, 32115), (969, 21410), (1615, 12846), (1938, 10705), (2141, 9690), (3230, 6423), (4282, 4845)]