80856685

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 129024000

約数和(自身を除く): 48167315

約数列:

[1, 5, 7, 13, 19, 35, 47, 65, 91, 95, 133, 199, 235, 247, 329, 455, 611, 665, 893, 995, 1235, 1393, 1645, 1729, 2587, 3055, 3781, 4277, 4465, 6251, 6965, 8645, 9353, 11609, 12935, 18109, 18905, 21385, 26467, 31255, 46765, 49153, 58045, 65471, 81263, 90545, 121589, 132335, 177707, 245765, 327355, 344071, 406315, 607945, 851123, 888535, 1243949, 1720355, 2310191, 4255615, 6219745, 11550955, 16171337, 80856685]

約数ペア:

[(1, 80856685), (5, 16171337), (7, 11550955), (13, 6219745), (19, 4255615), (35, 2310191), (47, 1720355), (65, 1243949), (91, 888535), (95, 851123), (133, 607945), (199, 406315), (235, 344071), (247, 327355), (329, 245765), (455, 177707), (611, 132335), (665, 121589), (893, 90545), (995, 81263), (1235, 65471), (1393, 58045), (1645, 49153), (1729, 46765), (2587, 31255), (3055, 26467), (3781, 21385), (4277, 18905), (4465, 18109), (6251, 12935), (6965, 11609), (8645, 9353)]