172682980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{839}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 373403520

約数和(自身を除く): 200720540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 251, 410, 502, 820, 839, 1004, 1255, 1678, 2510, 3356, 4195, 5020, 8390, 10291, 16780, 20582, 34399, 41164, 51455, 68798, 102910, 137596, 171995, 205820, 210589, 343990, 421178, 687980, 842356, 1052945, 2105890, 4211780, 8634149, 17268298, 34536596, 43170745, 86341490, 172682980]

約数ペア:

[(1, 172682980), (2, 86341490), (4, 43170745), (5, 34536596), (10, 17268298), (20, 8634149), (41, 4211780), (82, 2105890), (164, 1052945), (205, 842356), (251, 687980), (410, 421178), (502, 343990), (820, 210589), (839, 205820), (1004, 171995), (1255, 137596), (1678, 102910), (2510, 68798), (3356, 51455), (4195, 41164), (5020, 34399), (8390, 20582), (10291, 16780)]