155358080

素因数分解:

$2^7\times 5^1\times {\mathrm{242747}}^1$

素因数の和:242766

約数の個数: 32

約数和(自身を含む): 371404440

約数和(自身を除く): 216046360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 242747, 485494, 970988, 1213735, 1941976, 2427470, 3883952, 4854940, 7767904, 9709880, 15535808, 19419760, 31071616, 38839520, 77679040, 155358080]

約数ペア:

[(1, 155358080), (2, 77679040), (4, 38839520), (5, 31071616), (8, 19419760), (10, 15535808), (16, 9709880), (20, 7767904), (32, 4854940), (40, 3883952), (64, 2427470), (80, 1941976), (128, 1213735), (160, 970988), (320, 485494), (640, 242747)]