4978020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{509}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 14051520

約数和(自身を除く): 9073500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 509, 652, 815, 978, 1018, 1527, 1630, 1956, 2036, 2445, 2545, 3054, 3260, 4890, 5090, 6108, 7635, 9780, 10180, 15270, 30540, 82967, 165934, 248901, 331868, 414835, 497802, 829670, 995604, 1244505, 1659340, 2489010, 4978020]

約数ペア:

[(1, 4978020), (2, 2489010), (3, 1659340), (4, 1244505), (5, 995604), (6, 829670), (10, 497802), (12, 414835), (15, 331868), (20, 248901), (30, 165934), (60, 82967), (163, 30540), (326, 15270), (489, 10180), (509, 9780), (652, 7635), (815, 6108), (978, 5090), (1018, 4890), (1527, 3260), (1630, 3054), (1956, 2545), (2036, 2445)]