81331040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{72617}}^1$

素因数の和:72639

約数の個数: 48

約数和(自身を含む): 219596832

約数和(自身を除く): 138265792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72617, 145234, 290468, 363085, 508319, 580936, 726170, 1016638, 1161872, 1452340, 2033276, 2323744, 2541595, 2904680, 4066552, 5083190, 5809360, 8133104, 10166380, 11618720, 16266208, 20332760, 40665520, 81331040]

約数ペア:

[(1, 81331040), (2, 40665520), (4, 20332760), (5, 16266208), (7, 11618720), (8, 10166380), (10, 8133104), (14, 5809360), (16, 5083190), (20, 4066552), (28, 2904680), (32, 2541595), (35, 2323744), (40, 2033276), (56, 1452340), (70, 1161872), (80, 1016638), (112, 726170), (140, 580936), (160, 508319), (224, 363085), (280, 290468), (560, 145234), (1120, 72617)]