15661784180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{989999}}^1$

素因数の和:990128

約数の個数: 48

約数和(自身を含む): 37920960000

約数和(自身を除く): 22259175820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3955, 7910, 15820, 989999, 1979998, 3959996, 4949995, 6929993, 9899990, 13859986, 19799980, 27719972, 34649965, 69299930, 111869887, 138599860, 223739774, 447479548, 559349435, 783089209, 1118698870, 1566178418, 2237397740, 3132356836, 3915446045, 7830892090, 15661784180]

約数ペア:

[(1, 15661784180), (2, 7830892090), (4, 3915446045), (5, 3132356836), (7, 2237397740), (10, 1566178418), (14, 1118698870), (20, 783089209), (28, 559349435), (35, 447479548), (70, 223739774), (113, 138599860), (140, 111869887), (226, 69299930), (452, 34649965), (565, 27719972), (791, 19799980), (1130, 13859986), (1582, 9899990), (2260, 6929993), (3164, 4949995), (3955, 3959996), (7910, 1979998), (15820, 989999)]