20149276

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 21848036

約数列:

[1, 2, 4, 7, 14, 28, 47, 61, 94, 122, 188, 244, 251, 329, 427, 502, 658, 854, 1004, 1316, 1708, 1757, 2867, 3514, 5734, 7028, 11468, 11797, 15311, 20069, 23594, 30622, 40138, 47188, 61244, 80276, 82579, 107177, 165158, 214354, 330316, 428708, 719617, 1439234, 2878468, 5037319, 10074638, 20149276]

約数ペア:

[(1, 20149276), (2, 10074638), (4, 5037319), (7, 2878468), (14, 1439234), (28, 719617), (47, 428708), (61, 330316), (94, 214354), (122, 165158), (188, 107177), (244, 82579), (251, 80276), (329, 61244), (427, 47188), (502, 40138), (658, 30622), (854, 23594), (1004, 20069), (1316, 15311), (1708, 11797), (1757, 11468), (2867, 7028), (3514, 5734)]