65984420

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 142128000

約数和(自身を除く): 76143580

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 199, 236, 281, 295, 398, 562, 590, 796, 995, 1124, 1180, 1405, 1990, 2810, 3980, 5620, 11741, 16579, 23482, 33158, 46964, 55919, 58705, 66316, 82895, 111838, 117410, 165790, 223676, 234820, 279595, 331580, 559190, 1118380, 3299221, 6598442, 13196884, 16496105, 32992210, 65984420]

約数ペア:

[(1, 65984420), (2, 32992210), (4, 16496105), (5, 13196884), (10, 6598442), (20, 3299221), (59, 1118380), (118, 559190), (199, 331580), (236, 279595), (281, 234820), (295, 223676), (398, 165790), (562, 117410), (590, 111838), (796, 82895), (995, 66316), (1124, 58705), (1180, 55919), (1405, 46964), (1990, 33158), (2810, 23482), (3980, 16579), (5620, 11741)]