201439880

素因数分解:

$2^3\times 5^1\times {\mathrm{1423}}^1\times {\mathrm{3539}}^1$

素因数の和:4973

約数の個数: 32

約数和(自身を含む): 453686400

約数和(自身を除く): 252246520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1423, 2846, 3539, 5692, 7078, 7115, 11384, 14156, 14230, 17695, 28312, 28460, 35390, 56920, 70780, 141560, 5035997, 10071994, 20143988, 25179985, 40287976, 50359970, 100719940, 201439880]

約数ペア:

[(1, 201439880), (2, 100719940), (4, 50359970), (5, 40287976), (8, 25179985), (10, 20143988), (20, 10071994), (40, 5035997), (1423, 141560), (2846, 70780), (3539, 56920), (5692, 35390), (7078, 28460), (7115, 28312), (11384, 17695), (14156, 14230)]