20197912

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 46771200

約数和(自身を除く): 26573288

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 41, 56, 76, 82, 133, 152, 164, 266, 287, 328, 463, 532, 574, 779, 926, 1064, 1148, 1558, 1852, 2296, 3116, 3241, 3704, 5453, 6232, 6482, 8797, 10906, 12964, 17594, 18983, 21812, 25928, 35188, 37966, 43624, 61579, 70376, 75932, 123158, 132881, 151864, 246316, 265762, 360677, 492632, 531524, 721354, 1063048, 1442708, 2524739, 2885416, 5049478, 10098956, 20197912]

約数ペア:

[(1, 20197912), (2, 10098956), (4, 5049478), (7, 2885416), (8, 2524739), (14, 1442708), (19, 1063048), (28, 721354), (38, 531524), (41, 492632), (56, 360677), (76, 265762), (82, 246316), (133, 151864), (152, 132881), (164, 123158), (266, 75932), (287, 70376), (328, 61579), (463, 43624), (532, 37966), (574, 35188), (779, 25928), (926, 21812), (1064, 18983), (1148, 17594), (1558, 12964), (1852, 10906), (2296, 8797), (3116, 6482), (3241, 6232), (3704, 5453)]