137920400

素因数分解:

$2^4\times 5^2\times {\mathrm{344801}}^1$

素因数の和:344819

約数の個数: 30

約数和(自身を含む): 331354722

約数和(自身を除く): 193434322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 344801, 689602, 1379204, 1724005, 2758408, 3448010, 5516816, 6896020, 8620025, 13792040, 17240050, 27584080, 34480100, 68960200, 137920400]

約数ペア:

[(1, 137920400), (2, 68960200), (4, 34480100), (5, 27584080), (8, 17240050), (10, 13792040), (16, 8620025), (20, 6896020), (25, 5516816), (40, 3448010), (50, 2758408), (80, 1724005), (100, 1379204), (200, 689602), (400, 344801)]