30840560

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1613}}^1$

素因数の和:1865

約数の個数: 40

約数和(自身を含む): 72048960

約数和(自身を除く): 41208400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1613, 1912, 2390, 3226, 3824, 4780, 6452, 8065, 9560, 12904, 16130, 19120, 25808, 32260, 64520, 129040, 385507, 771014, 1542028, 1927535, 3084056, 3855070, 6168112, 7710140, 15420280, 30840560]

約数ペア:

[(1, 30840560), (2, 15420280), (4, 7710140), (5, 6168112), (8, 3855070), (10, 3084056), (16, 1927535), (20, 1542028), (40, 771014), (80, 385507), (239, 129040), (478, 64520), (956, 32260), (1195, 25808), (1613, 19120), (1912, 16130), (2390, 12904), (3226, 9560), (3824, 8065), (4780, 6452)]