280020488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{77611}}^1$

素因数の和:77669

約数の個数: 32

約数和(自身を含む): 586746720

約数和(自身を除く): 306726232

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1804, 3608, 77611, 155222, 310444, 620888, 853721, 1707442, 3182051, 3414884, 6364102, 6829768, 12728204, 25456408, 35002561, 70005122, 140010244, 280020488]

約数ペア:

[(1, 280020488), (2, 140010244), (4, 70005122), (8, 35002561), (11, 25456408), (22, 12728204), (41, 6829768), (44, 6364102), (82, 3414884), (88, 3182051), (164, 1707442), (328, 853721), (451, 620888), (902, 310444), (1804, 155222), (3608, 77611)]