1298784420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{21799}}^1$

素因数の和:22145

約数の個数: 72

約数和(自身を含む): 3951729600

約数和(自身を除く): 2652945180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 993, 1324, 1655, 1986, 2979, 3310, 3972, 4965, 5958, 6620, 9930, 11916, 14895, 19860, 21799, 29790, 43598, 59580, 65397, 87196, 108995, 130794, 196191, 217990, 261588, 326985, 392382, 435980, 653970, 784764, 980955, 1307940, 1961910, 3923820, 7215469, 14430938, 21646407, 28861876, 36077345, 43292814, 64939221, 72154690, 86585628, 108232035, 129878442, 144309380, 216464070, 259756884, 324696105, 432928140, 649392210, 1298784420]

約数ペア:

[(1, 1298784420), (2, 649392210), (3, 432928140), (4, 324696105), (5, 259756884), (6, 216464070), (9, 144309380), (10, 129878442), (12, 108232035), (15, 86585628), (18, 72154690), (20, 64939221), (30, 43292814), (36, 36077345), (45, 28861876), (60, 21646407), (90, 14430938), (180, 7215469), (331, 3923820), (662, 1961910), (993, 1307940), (1324, 980955), (1655, 784764), (1986, 653970), (2979, 435980), (3310, 392382), (3972, 326985), (4965, 261588), (5958, 217990), (6620, 196191), (9930, 130794), (11916, 108995), (14895, 87196), (19860, 65397), (21799, 59580), (29790, 43598)]