66219580

素因数分解:

$2^2\times 5^1\times 7^5\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 163060128

約数和(自身を除く): 96840548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 197, 245, 343, 394, 490, 686, 788, 980, 985, 1372, 1379, 1715, 1970, 2401, 2758, 3430, 3940, 4802, 5516, 6860, 6895, 9604, 9653, 12005, 13790, 16807, 19306, 24010, 27580, 33614, 38612, 48020, 48265, 67228, 67571, 84035, 96530, 135142, 168070, 193060, 270284, 336140, 337855, 472997, 675710, 945994, 1351420, 1891988, 2364985, 3310979, 4729970, 6621958, 9459940, 13243916, 16554895, 33109790, 66219580]

約数ペア:

[(1, 66219580), (2, 33109790), (4, 16554895), (5, 13243916), (7, 9459940), (10, 6621958), (14, 4729970), (20, 3310979), (28, 2364985), (35, 1891988), (49, 1351420), (70, 945994), (98, 675710), (140, 472997), (196, 337855), (197, 336140), (245, 270284), (343, 193060), (394, 168070), (490, 135142), (686, 96530), (788, 84035), (980, 67571), (985, 67228), (1372, 48265), (1379, 48020), (1715, 38612), (1970, 33614), (2401, 27580), (2758, 24010), (3430, 19306), (3940, 16807), (4802, 13790), (5516, 12005), (6860, 9653), (6895, 9604)]