285400520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{375527}}^1$

素因数の和:375557

約数の個数: 32

約数和(自身を含む): 675950400

約数和(自身を除く): 390549880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 375527, 751054, 1502108, 1877635, 3004216, 3755270, 7135013, 7510540, 14270026, 15021080, 28540052, 35675065, 57080104, 71350130, 142700260, 285400520]

約数ペア:

[(1, 285400520), (2, 142700260), (4, 71350130), (5, 57080104), (8, 35675065), (10, 28540052), (19, 15021080), (20, 14270026), (38, 7510540), (40, 7135013), (76, 3755270), (95, 3004216), (152, 1877635), (190, 1502108), (380, 751054), (760, 375527)]