64895360

素因数分解:

$2^7\times 5^1\times {\mathrm{101399}}^1$

素因数の和:101418

約数の個数: 32

約数和(自身を含む): 155142000

約数和(自身を除く): 90246640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 101399, 202798, 405596, 506995, 811192, 1013990, 1622384, 2027980, 3244768, 4055960, 6489536, 8111920, 12979072, 16223840, 32447680, 64895360]

約数ペア:

[(1, 64895360), (2, 32447680), (4, 16223840), (5, 12979072), (8, 8111920), (10, 6489536), (16, 4055960), (20, 3244768), (32, 2027980), (40, 1622384), (64, 1013990), (80, 811192), (128, 506995), (160, 405596), (320, 202798), (640, 101399)]