28489356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{863}}^1$

素因数の和:1011

約数の個数: 72

約数和(自身を含む): 83026944

約数和(自身を除く): 54537588

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 786, 863, 917, 1179, 1572, 1726, 1834, 2358, 2589, 2751, 3452, 3668, 4716, 5178, 5502, 6041, 7767, 8253, 10356, 11004, 12082, 15534, 16506, 18123, 24164, 31068, 33012, 36246, 54369, 72492, 108738, 113053, 217476, 226106, 339159, 452212, 678318, 791371, 1017477, 1356636, 1582742, 2034954, 2374113, 3165484, 4069908, 4748226, 7122339, 9496452, 14244678, 28489356]

約数ペア:

[(1, 28489356), (2, 14244678), (3, 9496452), (4, 7122339), (6, 4748226), (7, 4069908), (9, 3165484), (12, 2374113), (14, 2034954), (18, 1582742), (21, 1356636), (28, 1017477), (36, 791371), (42, 678318), (63, 452212), (84, 339159), (126, 226106), (131, 217476), (252, 113053), (262, 108738), (393, 72492), (524, 54369), (786, 36246), (863, 33012), (917, 31068), (1179, 24164), (1572, 18123), (1726, 16506), (1834, 15534), (2358, 12082), (2589, 11004), (2751, 10356), (3452, 8253), (3668, 7767), (4716, 6041), (5178, 5502)]