178105140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23011}}^1$

素因数の和:23069

約数の個数: 72

約数和(自身を含む): 552840288

約数和(自身を除く): 374735148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 23011, 46022, 69033, 92044, 115055, 138066, 207099, 230110, 276132, 345165, 414198, 460220, 690330, 828396, 989473, 1035495, 1380660, 1978946, 2070990, 2968419, 3957892, 4141980, 4947365, 5936838, 8905257, 9894730, 11873676, 14842095, 17810514, 19789460, 29684190, 35621028, 44526285, 59368380, 89052570, 178105140]

約数ペア:

[(1, 178105140), (2, 89052570), (3, 59368380), (4, 44526285), (5, 35621028), (6, 29684190), (9, 19789460), (10, 17810514), (12, 14842095), (15, 11873676), (18, 9894730), (20, 8905257), (30, 5936838), (36, 4947365), (43, 4141980), (45, 3957892), (60, 2968419), (86, 2070990), (90, 1978946), (129, 1380660), (172, 1035495), (180, 989473), (215, 828396), (258, 690330), (387, 460220), (430, 414198), (516, 345165), (645, 276132), (774, 230110), (860, 207099), (1290, 138066), (1548, 115055), (1935, 92044), (2580, 69033), (3870, 46022), (7740, 23011)]