31781730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 79377408

約数和(自身を除く): 47595678

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 71, 86, 129, 142, 213, 215, 258, 347, 355, 426, 430, 645, 694, 710, 1041, 1065, 1290, 1735, 2082, 2130, 3053, 3470, 5205, 6106, 9159, 10410, 14921, 15265, 18318, 24637, 29842, 30530, 44763, 45795, 49274, 73911, 74605, 89526, 91590, 123185, 147822, 149210, 223815, 246370, 369555, 447630, 739110, 1059391, 2118782, 3178173, 5296955, 6356346, 10593910, 15890865, 31781730]

約数ペア:

[(1, 31781730), (2, 15890865), (3, 10593910), (5, 6356346), (6, 5296955), (10, 3178173), (15, 2118782), (30, 1059391), (43, 739110), (71, 447630), (86, 369555), (129, 246370), (142, 223815), (213, 149210), (215, 147822), (258, 123185), (347, 91590), (355, 89526), (426, 74605), (430, 73911), (645, 49274), (694, 45795), (710, 44763), (1041, 30530), (1065, 29842), (1290, 24637), (1735, 18318), (2082, 15265), (2130, 14921), (3053, 10410), (3470, 9159), (5205, 6106)]