1870700180

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1\times {\mathrm{967}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 3960544896

約数和(自身を除く): 2089844716

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 491, 788, 967, 982, 985, 1934, 1964, 1970, 2455, 3868, 3940, 4835, 4910, 9670, 9820, 19340, 96727, 190499, 193454, 380998, 386908, 474797, 483635, 761996, 949594, 952495, 967270, 1899188, 1904990, 1934540, 2373985, 3809980, 4747970, 9495940, 93535009, 187070018, 374140036, 467675045, 935350090, 1870700180]

約数ペア:

[(1, 1870700180), (2, 935350090), (4, 467675045), (5, 374140036), (10, 187070018), (20, 93535009), (197, 9495940), (394, 4747970), (491, 3809980), (788, 2373985), (967, 1934540), (982, 1904990), (985, 1899188), (1934, 967270), (1964, 952495), (1970, 949594), (2455, 761996), (3868, 483635), (3940, 474797), (4835, 386908), (4910, 380998), (9670, 193454), (9820, 190499), (19340, 96727)]