21162560

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1613}}^1$

素因数の和:1671

約数の個数: 56

約数和(自身を含む): 51654456

約数和(自身を除く): 30491896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1613, 1640, 2624, 3226, 3280, 6452, 6560, 8065, 12904, 13120, 16130, 25808, 32260, 51616, 64520, 66133, 103232, 129040, 132266, 258080, 264532, 330665, 516160, 529064, 661330, 1058128, 1322660, 2116256, 2645320, 4232512, 5290640, 10581280, 21162560]

約数ペア:

[(1, 21162560), (2, 10581280), (4, 5290640), (5, 4232512), (8, 2645320), (10, 2116256), (16, 1322660), (20, 1058128), (32, 661330), (40, 529064), (41, 516160), (64, 330665), (80, 264532), (82, 258080), (160, 132266), (164, 129040), (205, 103232), (320, 66133), (328, 64520), (410, 51616), (656, 32260), (820, 25808), (1312, 16130), (1613, 13120), (1640, 12904), (2624, 8065), (3226, 6560), (3280, 6452)]