261996680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{25889}}^1$

素因数の和:25934

約数の個数: 64

約数和(自身を含む): 671068800

約数和(自身を除く): 409072120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 25889, 51778, 103556, 129445, 207112, 258890, 284779, 517780, 569558, 595447, 1035560, 1139116, 1190894, 1423895, 2278232, 2381788, 2847790, 2977235, 4763576, 5695580, 5954470, 6549917, 11391160, 11908940, 13099834, 23817880, 26199668, 32749585, 52399336, 65499170, 130998340, 261996680]

約数ペア:

[(1, 261996680), (2, 130998340), (4, 65499170), (5, 52399336), (8, 32749585), (10, 26199668), (11, 23817880), (20, 13099834), (22, 11908940), (23, 11391160), (40, 6549917), (44, 5954470), (46, 5695580), (55, 4763576), (88, 2977235), (92, 2847790), (110, 2381788), (115, 2278232), (184, 1423895), (220, 1190894), (230, 1139116), (253, 1035560), (440, 595447), (460, 569558), (506, 517780), (920, 284779), (1012, 258890), (1265, 207112), (2024, 129445), (2530, 103556), (5060, 51778), (10120, 25889)]