19977508740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6795071}}^1$

素因数の和:6795097

約数の個数: 72

約数和(自身を含む): 65069609472

約数和(自身を除く): 45092100732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6795071, 13590142, 20385213, 27180284, 33975355, 40770426, 47565497, 67950710, 81540852, 95130994, 101926065, 135901420, 142696491, 190261988, 203852130, 237827485, 285392982, 332958479, 407704260, 475654970, 570785964, 665916958, 713482455, 951309940, 998875437, 1331833916, 1426964910, 1664792395, 1997750874, 2853929820, 3329584790, 3995501748, 4994377185, 6659169580, 9988754370, 19977508740]

約数ペア:

[(1, 19977508740), (2, 9988754370), (3, 6659169580), (4, 4994377185), (5, 3995501748), (6, 3329584790), (7, 2853929820), (10, 1997750874), (12, 1664792395), (14, 1426964910), (15, 1331833916), (20, 998875437), (21, 951309940), (28, 713482455), (30, 665916958), (35, 570785964), (42, 475654970), (49, 407704260), (60, 332958479), (70, 285392982), (84, 237827485), (98, 203852130), (105, 190261988), (140, 142696491), (147, 135901420), (196, 101926065), (210, 95130994), (245, 81540852), (294, 67950710), (420, 47565497), (490, 40770426), (588, 33975355), (735, 27180284), (980, 20385213), (1470, 13590142), (2940, 6795071)]