643065982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1\times {\mathrm{2063}}^1$

素因数の和:2728

約数の個数: 32

約数和(自身を含む): 1095736320

約数和(自身を除く): 452670338

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 631, 1262, 2063, 4126, 8203, 11989, 16406, 23978, 26819, 39197, 53638, 78394, 155857, 311714, 509561, 1019122, 1301753, 2603506, 16922789, 24733307, 33845578, 49466614, 321532991, 643065982]

約数ペア:

[(1, 643065982), (2, 321532991), (13, 49466614), (19, 33845578), (26, 24733307), (38, 16922789), (247, 2603506), (494, 1301753), (631, 1019122), (1262, 509561), (2063, 311714), (4126, 155857), (8203, 78394), (11989, 53638), (16406, 39197), (23978, 26819)]