40665520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{72617}}^1$

素因数の和:72637

約数の個数: 40

約数和(自身を含む): 108055584

約数和(自身を除く): 67390064

約数列:

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

約数ペア:

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