90123140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{63467}}^1$

素因数の和:63547

約数の個数: 24

約数和(自身を含む): 191927232

約数和(自身を除く): 101804092

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 63467, 126934, 253868, 317335, 634670, 1269340, 4506157, 9012314, 18024628, 22530785, 45061570, 90123140]

約数ペア:

[(1, 90123140), (2, 45061570), (4, 22530785), (5, 18024628), (10, 9012314), (20, 4506157), (71, 1269340), (142, 634670), (284, 317335), (355, 253868), (710, 126934), (1420, 63467)]