80781372

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{320561}}^1$

素因数の和:320578

約数の個数: 36

約数和(自身を含む): 233369136

約数和(自身を除く): 152587764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 320561, 641122, 961683, 1282244, 1923366, 2243927, 2885049, 3846732, 4487854, 5770098, 6731781, 8975708, 11540196, 13463562, 20195343, 26927124, 40390686, 80781372]

約数ペア:

[(1, 80781372), (2, 40390686), (3, 26927124), (4, 20195343), (6, 13463562), (7, 11540196), (9, 8975708), (12, 6731781), (14, 5770098), (18, 4487854), (21, 3846732), (28, 2885049), (36, 2243927), (42, 1923366), (63, 1282244), (84, 961683), (126, 641122), (252, 320561)]