728406

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 64

約数和(自身を含む): 1935360

約数和(自身を除く): 1206954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 47, 54, 63, 82, 94, 123, 126, 141, 189, 246, 282, 287, 329, 369, 378, 423, 574, 658, 738, 846, 861, 987, 1107, 1269, 1722, 1927, 1974, 2214, 2538, 2583, 2961, 3854, 5166, 5781, 5922, 7749, 8883, 11562, 13489, 15498, 17343, 17766, 26978, 34686, 40467, 52029, 80934, 104058, 121401, 242802, 364203, 728406]

約数ペア:

[(1, 728406), (2, 364203), (3, 242802), (6, 121401), (7, 104058), (9, 80934), (14, 52029), (18, 40467), (21, 34686), (27, 26978), (41, 17766), (42, 17343), (47, 15498), (54, 13489), (63, 11562), (82, 8883), (94, 7749), (123, 5922), (126, 5781), (141, 5166), (189, 3854), (246, 2961), (282, 2583), (287, 2538), (329, 2214), (369, 1974), (378, 1927), (423, 1722), (574, 1269), (658, 1107), (738, 987), (846, 861)]