164010920

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{173}}^2$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 373879260

約数和(自身を除く): 209868340

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 173, 274, 346, 548, 685, 692, 865, 1096, 1370, 1384, 1730, 2740, 3460, 5480, 6920, 23701, 29929, 47402, 59858, 94804, 118505, 119716, 149645, 189608, 237010, 239432, 299290, 474020, 598580, 948040, 1197160, 4100273, 8200546, 16401092, 20501365, 32802184, 41002730, 82005460, 164010920]

約数ペア:

[(1, 164010920), (2, 82005460), (4, 41002730), (5, 32802184), (8, 20501365), (10, 16401092), (20, 8200546), (40, 4100273), (137, 1197160), (173, 948040), (274, 598580), (346, 474020), (548, 299290), (685, 239432), (692, 237010), (865, 189608), (1096, 149645), (1370, 119716), (1384, 118505), (1730, 94804), (2740, 59858), (3460, 47402), (5480, 29929), (6920, 23701)]