20177776

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2393}}^1$

素因数の和:2449

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 22569488

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 2393, 4216, 4786, 8432, 9572, 19144, 38288, 40681, 74183, 81362, 148366, 162724, 296732, 325448, 593464, 650896, 1186928, 1261111, 2522222, 5044444, 10088888, 20177776]

約数ペア:

[(1, 20177776), (2, 10088888), (4, 5044444), (8, 2522222), (16, 1261111), (17, 1186928), (31, 650896), (34, 593464), (62, 325448), (68, 296732), (124, 162724), (136, 148366), (248, 81362), (272, 74183), (496, 40681), (527, 38288), (1054, 19144), (2108, 9572), (2393, 8432), (4216, 4786)]