40709720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 95135040

約数和(自身を除く): 54425320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 103, 164, 205, 206, 241, 328, 410, 412, 482, 515, 820, 824, 964, 1030, 1205, 1640, 1928, 2060, 2410, 4120, 4223, 4820, 8446, 9640, 9881, 16892, 19762, 21115, 24823, 33784, 39524, 42230, 49405, 49646, 79048, 84460, 98810, 99292, 124115, 168920, 197620, 198584, 248230, 395240, 496460, 992920, 1017743, 2035486, 4070972, 5088715, 8141944, 10177430, 20354860, 40709720]

約数ペア:

[(1, 40709720), (2, 20354860), (4, 10177430), (5, 8141944), (8, 5088715), (10, 4070972), (20, 2035486), (40, 1017743), (41, 992920), (82, 496460), (103, 395240), (164, 248230), (205, 198584), (206, 197620), (241, 168920), (328, 124115), (410, 99292), (412, 98810), (482, 84460), (515, 79048), (820, 49646), (824, 49405), (964, 42230), (1030, 39524), (1205, 33784), (1640, 24823), (1928, 21115), (2060, 19762), (2410, 16892), (4120, 9881), (4223, 9640), (4820, 8446)]