131401840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1823}}^1$

素因数の和:1906

約数の個数: 80

約数和(自身を含む): 329764608

約数和(自身を除く): 198362768

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 53, 68, 80, 85, 106, 136, 170, 212, 265, 272, 340, 424, 530, 680, 848, 901, 1060, 1360, 1802, 1823, 2120, 3604, 3646, 4240, 4505, 7208, 7292, 9010, 9115, 14416, 14584, 18020, 18230, 29168, 30991, 36040, 36460, 61982, 72080, 72920, 96619, 123964, 145840, 154955, 193238, 247928, 309910, 386476, 483095, 495856, 619820, 772952, 966190, 1239640, 1545904, 1642523, 1932380, 2479280, 3285046, 3864760, 6570092, 7729520, 8212615, 13140184, 16425230, 26280368, 32850460, 65700920, 131401840]

約数ペア:

[(1, 131401840), (2, 65700920), (4, 32850460), (5, 26280368), (8, 16425230), (10, 13140184), (16, 8212615), (17, 7729520), (20, 6570092), (34, 3864760), (40, 3285046), (53, 2479280), (68, 1932380), (80, 1642523), (85, 1545904), (106, 1239640), (136, 966190), (170, 772952), (212, 619820), (265, 495856), (272, 483095), (340, 386476), (424, 309910), (530, 247928), (680, 193238), (848, 154955), (901, 145840), (1060, 123964), (1360, 96619), (1802, 72920), (1823, 72080), (2120, 61982), (3604, 36460), (3646, 36040), (4240, 30991), (4505, 29168), (7208, 18230), (7292, 18020), (9010, 14584), (9115, 14416)]