18001040

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2711}}^1$

素因数の和:2807

約数の個数: 40

約数和(自身を含む): 42372288

約数和(自身を除く): 24371248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2711, 3320, 5422, 6640, 10844, 13555, 21688, 27110, 43376, 54220, 108440, 216880, 225013, 450026, 900052, 1125065, 1800104, 2250130, 3600208, 4500260, 9000520, 18001040]

約数ペア:

[(1, 18001040), (2, 9000520), (4, 4500260), (5, 3600208), (8, 2250130), (10, 1800104), (16, 1125065), (20, 900052), (40, 450026), (80, 225013), (83, 216880), (166, 108440), (332, 54220), (415, 43376), (664, 27110), (830, 21688), (1328, 13555), (1660, 10844), (2711, 6640), (3320, 5422)]