208187816

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 420526080

約数和(自身を除く): 212338264

約数列:

[1, 2, 4, 8, 31, 47, 53, 62, 94, 106, 124, 188, 212, 248, 337, 376, 424, 674, 1348, 1457, 1643, 2491, 2696, 2914, 3286, 4982, 5828, 6572, 9964, 10447, 11656, 13144, 15839, 17861, 19928, 20894, 31678, 35722, 41788, 63356, 71444, 77221, 83576, 126712, 142888, 154442, 308884, 491009, 553691, 617768, 839467, 982018, 1107382, 1678934, 1964036, 2214764, 3357868, 3928072, 4429528, 6715736, 26023477, 52046954, 104093908, 208187816]

約数ペア:

[(1, 208187816), (2, 104093908), (4, 52046954), (8, 26023477), (31, 6715736), (47, 4429528), (53, 3928072), (62, 3357868), (94, 2214764), (106, 1964036), (124, 1678934), (188, 1107382), (212, 982018), (248, 839467), (337, 617768), (376, 553691), (424, 491009), (674, 308884), (1348, 154442), (1457, 142888), (1643, 126712), (2491, 83576), (2696, 77221), (2914, 71444), (3286, 63356), (4982, 41788), (5828, 35722), (6572, 31678), (9964, 20894), (10447, 19928), (11656, 17861), (13144, 15839)]