2870291720

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{140977}}^1$

素因数の和:141497

約数の個数: 32

約数和(自身を含む): 6470890200

約数和(自身を除く): 3600598480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 20360, 140977, 281954, 563908, 704885, 1127816, 1409770, 2819540, 5639080, 71757293, 143514586, 287029172, 358786465, 574058344, 717572930, 1435145860, 2870291720]

約数ペア:

[(1, 2870291720), (2, 1435145860), (4, 717572930), (5, 574058344), (8, 358786465), (10, 287029172), (20, 143514586), (40, 71757293), (509, 5639080), (1018, 2819540), (2036, 1409770), (2545, 1127816), (4072, 704885), (5090, 563908), (10180, 281954), (20360, 140977)]