261855440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{42509}}^1$

素因数の和:42540

約数の個数: 80

約数和(自身を含む): 759058560

約数和(自身を除く): 497203120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 42509, 85018, 170036, 212545, 297563, 340072, 425090, 467599, 595126, 680144, 850180, 935198, 1190252, 1487815, 1700360, 1870396, 2337995, 2380504, 2975630, 3273193, 3400720, 3740792, 4675990, 4761008, 5951260, 6546386, 7481584, 9351980, 11902520, 13092772, 16365965, 18703960, 23805040, 26185544, 32731930, 37407920, 52371088, 65463860, 130927720, 261855440]

約数ペア:

[(1, 261855440), (2, 130927720), (4, 65463860), (5, 52371088), (7, 37407920), (8, 32731930), (10, 26185544), (11, 23805040), (14, 18703960), (16, 16365965), (20, 13092772), (22, 11902520), (28, 9351980), (35, 7481584), (40, 6546386), (44, 5951260), (55, 4761008), (56, 4675990), (70, 3740792), (77, 3400720), (80, 3273193), (88, 2975630), (110, 2380504), (112, 2337995), (140, 1870396), (154, 1700360), (176, 1487815), (220, 1190252), (280, 935198), (308, 850180), (385, 680144), (440, 595126), (560, 467599), (616, 425090), (770, 340072), (880, 297563), (1232, 212545), (1540, 170036), (3080, 85018), (6160, 42509)]