20195005964

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{672181}}^1$

素因数の和:672258

約数の個数: 48

約数和(自身を含む): 42912098880

約数和(自身を除く): 22717092916

約数列:

[1, 2, 4, 7, 14, 28, 29, 37, 58, 74, 116, 148, 203, 259, 406, 518, 812, 1036, 1073, 2146, 4292, 7511, 15022, 30044, 672181, 1344362, 2688724, 4705267, 9410534, 18821068, 19493249, 24870697, 38986498, 49741394, 77972996, 99482788, 136452743, 174094879, 272905486, 348189758, 545810972, 696379516, 721250213, 1442500426, 2885000852, 5048751491, 10097502982, 20195005964]

約数ペア:

[(1, 20195005964), (2, 10097502982), (4, 5048751491), (7, 2885000852), (14, 1442500426), (28, 721250213), (29, 696379516), (37, 545810972), (58, 348189758), (74, 272905486), (116, 174094879), (148, 136452743), (203, 99482788), (259, 77972996), (406, 49741394), (518, 38986498), (812, 24870697), (1036, 19493249), (1073, 18821068), (2146, 9410534), (4292, 4705267), (7511, 2688724), (15022, 1344362), (30044, 672181)]