20804977888

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{601439}}^1$

素因数の和:601519

約数の個数: 48

約数和(自身を含む): 43650109440

約数和(自身を除く): 22845131552

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 47, 92, 94, 184, 188, 368, 376, 736, 752, 1081, 1504, 2162, 4324, 8648, 17296, 34592, 601439, 1202878, 2405756, 4811512, 9623024, 13833097, 19246048, 27666194, 28267633, 55332388, 56535266, 110664776, 113070532, 221329552, 226141064, 442659104, 452282128, 650155559, 904564256, 1300311118, 2600622236, 5201244472, 10402488944, 20804977888]

約数ペア:

[(1, 20804977888), (2, 10402488944), (4, 5201244472), (8, 2600622236), (16, 1300311118), (23, 904564256), (32, 650155559), (46, 452282128), (47, 442659104), (92, 226141064), (94, 221329552), (184, 113070532), (188, 110664776), (368, 56535266), (376, 55332388), (736, 28267633), (752, 27666194), (1081, 19246048), (1504, 13833097), (2162, 9623024), (4324, 4811512), (8648, 2405756), (17296, 1202878), (34592, 601439)]