80785960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 187019280

約数和(自身を除く): 106233320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 113, 122, 226, 244, 293, 305, 452, 488, 565, 586, 610, 904, 1130, 1172, 1220, 1465, 2260, 2344, 2440, 2930, 4520, 5860, 6893, 11720, 13786, 17873, 27572, 33109, 34465, 35746, 55144, 66218, 68930, 71492, 89365, 132436, 137860, 142984, 165545, 178730, 264872, 275720, 331090, 357460, 662180, 714920, 1324360, 2019649, 4039298, 8078596, 10098245, 16157192, 20196490, 40392980, 80785960]

約数ペア:

[(1, 80785960), (2, 40392980), (4, 20196490), (5, 16157192), (8, 10098245), (10, 8078596), (20, 4039298), (40, 2019649), (61, 1324360), (113, 714920), (122, 662180), (226, 357460), (244, 331090), (293, 275720), (305, 264872), (452, 178730), (488, 165545), (565, 142984), (586, 137860), (610, 132436), (904, 89365), (1130, 71492), (1172, 68930), (1220, 66218), (1465, 55144), (2260, 35746), (2344, 34465), (2440, 33109), (2930, 27572), (4520, 17873), (5860, 13786), (6893, 11720)]