28251468

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1579}}^1$

素因数の和:1667

約数の個数: 72

約数和(自身を含む): 82817280

約数和(自身を除く): 54565812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 71, 84, 126, 142, 213, 252, 284, 426, 497, 639, 852, 994, 1278, 1491, 1579, 1988, 2556, 2982, 3158, 4473, 4737, 5964, 6316, 8946, 9474, 11053, 14211, 17892, 18948, 22106, 28422, 33159, 44212, 56844, 66318, 99477, 112109, 132636, 198954, 224218, 336327, 397908, 448436, 672654, 784763, 1008981, 1345308, 1569526, 2017962, 2354289, 3139052, 4035924, 4708578, 7062867, 9417156, 14125734, 28251468]

約数ペア:

[(1, 28251468), (2, 14125734), (3, 9417156), (4, 7062867), (6, 4708578), (7, 4035924), (9, 3139052), (12, 2354289), (14, 2017962), (18, 1569526), (21, 1345308), (28, 1008981), (36, 784763), (42, 672654), (63, 448436), (71, 397908), (84, 336327), (126, 224218), (142, 198954), (213, 132636), (252, 112109), (284, 99477), (426, 66318), (497, 56844), (639, 44212), (852, 33159), (994, 28422), (1278, 22106), (1491, 18948), (1579, 17892), (1988, 14211), (2556, 11053), (2982, 9474), (3158, 8946), (4473, 6316), (4737, 5964)]