1784120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 4475520

約数和(自身を除く): 2691400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 73, 94, 104, 130, 146, 188, 235, 260, 292, 365, 376, 470, 520, 584, 611, 730, 940, 949, 1222, 1460, 1880, 1898, 2444, 2920, 3055, 3431, 3796, 4745, 4888, 6110, 6862, 7592, 9490, 12220, 13724, 17155, 18980, 24440, 27448, 34310, 37960, 44603, 68620, 89206, 137240, 178412, 223015, 356824, 446030, 892060, 1784120]

約数ペア:

[(1, 1784120), (2, 892060), (4, 446030), (5, 356824), (8, 223015), (10, 178412), (13, 137240), (20, 89206), (26, 68620), (40, 44603), (47, 37960), (52, 34310), (65, 27448), (73, 24440), (94, 18980), (104, 17155), (130, 13724), (146, 12220), (188, 9490), (235, 7592), (260, 6862), (292, 6110), (365, 4888), (376, 4745), (470, 3796), (520, 3431), (584, 3055), (611, 2920), (730, 2444), (940, 1898), (949, 1880), (1222, 1460)]