4000240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1613}}^1$

素因数の和:1657

約数の個数: 40

約数和(自身を含む): 9606528

約数和(自身を除く): 5606288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 1613, 2480, 3226, 6452, 8065, 12904, 16130, 25808, 32260, 50003, 64520, 100006, 129040, 200012, 250015, 400024, 500030, 800048, 1000060, 2000120, 4000240]

約数ペア:

[(1, 4000240), (2, 2000120), (4, 1000060), (5, 800048), (8, 500030), (10, 400024), (16, 250015), (20, 200012), (31, 129040), (40, 100006), (62, 64520), (80, 50003), (124, 32260), (155, 25808), (248, 16130), (310, 12904), (496, 8065), (620, 6452), (1240, 3226), (1613, 2480)]