208020040

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{9013}}^1$

素因数の和:9601

約数の個数: 32

約数和(自身を含む): 468908280

約数和(自身を除く): 260888240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 1154, 2308, 2885, 4616, 5770, 9013, 11540, 18026, 23080, 36052, 45065, 72104, 90130, 180260, 360520, 5200501, 10401002, 20802004, 26002505, 41604008, 52005010, 104010020, 208020040]

約数ペア:

[(1, 208020040), (2, 104010020), (4, 52005010), (5, 41604008), (8, 26002505), (10, 20802004), (20, 10401002), (40, 5200501), (577, 360520), (1154, 180260), (2308, 90130), (2885, 72104), (4616, 45065), (5770, 36052), (9013, 23080), (11540, 18026)]