1639088

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 3541440

約数和(自身を除く): 1902352

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 134, 139, 176, 268, 278, 536, 556, 737, 1072, 1112, 1474, 1529, 2224, 2948, 3058, 5896, 6116, 9313, 11792, 12232, 18626, 24464, 37252, 74504, 102443, 149008, 204886, 409772, 819544, 1639088]

約数ペア:

[(1, 1639088), (2, 819544), (4, 409772), (8, 204886), (11, 149008), (16, 102443), (22, 74504), (44, 37252), (67, 24464), (88, 18626), (134, 12232), (139, 11792), (176, 9313), (268, 6116), (278, 5896), (536, 3058), (556, 2948), (737, 2224), (1072, 1529), (1112, 1474)]