205255920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{863}}^1\times {\mathrm{991}}^1$

素因数の和:1870

約数の個数: 80

約数和(自身を含む): 637673472

約数和(自身を除く): 432417552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 863, 991, 1726, 1982, 2589, 2973, 3452, 3964, 4315, 4955, 5178, 5946, 6904, 7928, 8630, 9910, 10356, 11892, 12945, 13808, 14865, 15856, 17260, 19820, 20712, 23784, 25890, 29730, 34520, 39640, 41424, 47568, 51780, 59460, 69040, 79280, 103560, 118920, 207120, 237840, 855233, 1710466, 2565699, 3420932, 4276165, 5131398, 6841864, 8552330, 10262796, 12828495, 13683728, 17104660, 20525592, 25656990, 34209320, 41051184, 51313980, 68418640, 102627960, 205255920]

約数ペア:

[(1, 205255920), (2, 102627960), (3, 68418640), (4, 51313980), (5, 41051184), (6, 34209320), (8, 25656990), (10, 20525592), (12, 17104660), (15, 13683728), (16, 12828495), (20, 10262796), (24, 8552330), (30, 6841864), (40, 5131398), (48, 4276165), (60, 3420932), (80, 2565699), (120, 1710466), (240, 855233), (863, 237840), (991, 207120), (1726, 118920), (1982, 103560), (2589, 79280), (2973, 69040), (3452, 59460), (3964, 51780), (4315, 47568), (4955, 41424), (5178, 39640), (5946, 34520), (6904, 29730), (7928, 25890), (8630, 23784), (9910, 20712), (10356, 19820), (11892, 17260), (12945, 15856), (13808, 14865)]