19768576

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 42384384

約数和(自身を除く): 22615808

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 53, 62, 64, 94, 106, 124, 128, 188, 212, 248, 256, 376, 424, 496, 752, 848, 992, 1457, 1504, 1643, 1696, 1984, 2491, 2914, 3008, 3286, 3392, 3968, 4982, 5828, 6016, 6572, 6784, 7936, 9964, 11656, 12032, 13144, 13568, 19928, 23312, 26288, 39856, 46624, 52576, 77221, 79712, 93248, 105152, 154442, 159424, 186496, 210304, 308884, 318848, 372992, 420608, 617768, 637696, 1235536, 2471072, 4942144, 9884288, 19768576]

約数ペア:

[(1, 19768576), (2, 9884288), (4, 4942144), (8, 2471072), (16, 1235536), (31, 637696), (32, 617768), (47, 420608), (53, 372992), (62, 318848), (64, 308884), (94, 210304), (106, 186496), (124, 159424), (128, 154442), (188, 105152), (212, 93248), (248, 79712), (256, 77221), (376, 52576), (424, 46624), (496, 39856), (752, 26288), (848, 23312), (992, 19928), (1457, 13568), (1504, 13144), (1643, 12032), (1696, 11656), (1984, 9964), (2491, 7936), (2914, 6784), (3008, 6572), (3286, 6016), (3392, 5828), (3968, 4982)]