19955072

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 22346368

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 62, 64, 94, 107, 124, 128, 188, 214, 248, 376, 428, 496, 752, 856, 992, 1457, 1504, 1712, 1984, 2914, 3008, 3317, 3424, 3968, 5029, 5828, 6016, 6634, 6848, 10058, 11656, 13268, 13696, 20116, 23312, 26536, 40232, 46624, 53072, 80464, 93248, 106144, 155899, 160928, 186496, 212288, 311798, 321856, 424576, 623596, 643712, 1247192, 2494384, 4988768, 9977536, 19955072]

約数ペア:

[(1, 19955072), (2, 9977536), (4, 4988768), (8, 2494384), (16, 1247192), (31, 643712), (32, 623596), (47, 424576), (62, 321856), (64, 311798), (94, 212288), (107, 186496), (124, 160928), (128, 155899), (188, 106144), (214, 93248), (248, 80464), (376, 53072), (428, 46624), (496, 40232), (752, 26536), (856, 23312), (992, 20116), (1457, 13696), (1504, 13268), (1712, 11656), (1984, 10058), (2914, 6848), (3008, 6634), (3317, 6016), (3424, 5828), (3968, 5029)]