2988620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 6713280

約数和(自身を除く): 3724660

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 73, 89, 92, 115, 146, 178, 230, 292, 356, 365, 445, 460, 730, 890, 1460, 1679, 1780, 2047, 3358, 4094, 6497, 6716, 8188, 8395, 10235, 12994, 16790, 20470, 25988, 32485, 33580, 40940, 64970, 129940, 149431, 298862, 597724, 747155, 1494310, 2988620]

約数ペア:

[(1, 2988620), (2, 1494310), (4, 747155), (5, 597724), (10, 298862), (20, 149431), (23, 129940), (46, 64970), (73, 40940), (89, 33580), (92, 32485), (115, 25988), (146, 20470), (178, 16790), (230, 12994), (292, 10235), (356, 8395), (365, 8188), (445, 6716), (460, 6497), (730, 4094), (890, 3358), (1460, 2047), (1679, 1780)]