1990308834

素因数分解:

$2^1\times 3^4\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{787}}^1$

素因数の和:1101

約数の個数: 80

約数和(自身を含む): 4551532128

約数和(自身を除く): 2561223294

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 81, 134, 162, 201, 233, 402, 466, 603, 699, 787, 1206, 1398, 1574, 1809, 2097, 2361, 3618, 4194, 4722, 5427, 6291, 7083, 10854, 12582, 14166, 15611, 18873, 21249, 31222, 37746, 42498, 46833, 52729, 63747, 93666, 105458, 127494, 140499, 158187, 183371, 280998, 316374, 366742, 421497, 474561, 550113, 842994, 949122, 1100226, 1264491, 1423683, 1650339, 2528982, 2847366, 3300678, 4271049, 4951017, 8542098, 9902034, 12285857, 14853051, 24571714, 29706102, 36857571, 73715142, 110572713, 221145426, 331718139, 663436278, 995154417, 1990308834]

約数ペア:

[(1, 1990308834), (2, 995154417), (3, 663436278), (6, 331718139), (9, 221145426), (18, 110572713), (27, 73715142), (54, 36857571), (67, 29706102), (81, 24571714), (134, 14853051), (162, 12285857), (201, 9902034), (233, 8542098), (402, 4951017), (466, 4271049), (603, 3300678), (699, 2847366), (787, 2528982), (1206, 1650339), (1398, 1423683), (1574, 1264491), (1809, 1100226), (2097, 949122), (2361, 842994), (3618, 550113), (4194, 474561), (4722, 421497), (5427, 366742), (6291, 316374), (7083, 280998), (10854, 183371), (12582, 158187), (14166, 140499), (15611, 127494), (18873, 105458), (21249, 93666), (31222, 63747), (37746, 52729), (42498, 46833)]