90353930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{953}}^1$

素因数の和:1478

約数の個数: 32

約数和(自身を含む): 171720000

約数和(自身を除く): 81366070

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 499, 953, 998, 1906, 2495, 4765, 4990, 9481, 9530, 18107, 18962, 36214, 47405, 90535, 94810, 181070, 475547, 951094, 2377735, 4755470, 9035393, 18070786, 45176965, 90353930]

約数ペア:

[(1, 90353930), (2, 45176965), (5, 18070786), (10, 9035393), (19, 4755470), (38, 2377735), (95, 951094), (190, 475547), (499, 181070), (953, 94810), (998, 90535), (1906, 47405), (2495, 36214), (4765, 18962), (4990, 18107), (9481, 9530)]