81575788

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{6823}}^1$

素因数の和:6902

約数の個数: 36

約数和(自身を含む): 168812112

約数和(自身を除く): 87236324

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1708, 2989, 5978, 6823, 11956, 13646, 27292, 47761, 95522, 191044, 334327, 416203, 668654, 832406, 1337308, 1664812, 2913421, 5826842, 11653684, 20393947, 40787894, 81575788]

約数ペア:

[(1, 81575788), (2, 40787894), (4, 20393947), (7, 11653684), (14, 5826842), (28, 2913421), (49, 1664812), (61, 1337308), (98, 832406), (122, 668654), (196, 416203), (244, 334327), (427, 191044), (854, 95522), (1708, 47761), (2989, 27292), (5978, 13646), (6823, 11956)]