40131440

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1613}}^1$

素因数の和:1937

約数の個数: 40

約数和(自身を含む): 93663648

約数和(自身を除く): 53532208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 1613, 2488, 3110, 3226, 4976, 6220, 6452, 8065, 12440, 12904, 16130, 24880, 25808, 32260, 64520, 129040, 501643, 1003286, 2006572, 2508215, 4013144, 5016430, 8026288, 10032860, 20065720, 40131440]

約数ペア:

[(1, 40131440), (2, 20065720), (4, 10032860), (5, 8026288), (8, 5016430), (10, 4013144), (16, 2508215), (20, 2006572), (40, 1003286), (80, 501643), (311, 129040), (622, 64520), (1244, 32260), (1555, 25808), (1613, 24880), (2488, 16130), (3110, 12904), (3226, 12440), (4976, 8065), (6220, 6452)]