388994788

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^2\times {\mathrm{307}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 855052352

約数和(自身を除く): 466057564

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 59, 91, 118, 182, 236, 307, 364, 413, 614, 767, 826, 1228, 1534, 1652, 2149, 3068, 3481, 3991, 4298, 5369, 6962, 7982, 8596, 10738, 13924, 15964, 18113, 21476, 24367, 27937, 36226, 45253, 48734, 55874, 72452, 90506, 97468, 111748, 126791, 181012, 235469, 253582, 316771, 470938, 507164, 633542, 941876, 1068667, 1267084, 1648283, 2137334, 3296566, 4274668, 6593132, 7480669, 13892671, 14961338, 27785342, 29922676, 55570684, 97248697, 194497394, 388994788]

約数ペア:

[(1, 388994788), (2, 194497394), (4, 97248697), (7, 55570684), (13, 29922676), (14, 27785342), (26, 14961338), (28, 13892671), (52, 7480669), (59, 6593132), (91, 4274668), (118, 3296566), (182, 2137334), (236, 1648283), (307, 1267084), (364, 1068667), (413, 941876), (614, 633542), (767, 507164), (826, 470938), (1228, 316771), (1534, 253582), (1652, 235469), (2149, 181012), (3068, 126791), (3481, 111748), (3991, 97468), (4298, 90506), (5369, 72452), (6962, 55874), (7982, 48734), (8596, 45253), (10738, 36226), (13924, 27937), (15964, 24367), (18113, 21476)]