278320816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{4339}}^1$

素因数の和:4577

約数の個数: 40

約数和(自身を含む): 570449600

約数和(自身を除く): 292128784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 211, 304, 422, 844, 1688, 3376, 4009, 4339, 8018, 8678, 16036, 17356, 32072, 34712, 64144, 69424, 82441, 164882, 329764, 659528, 915529, 1319056, 1831058, 3662116, 7324232, 14648464, 17395051, 34790102, 69580204, 139160408, 278320816]

約数ペア:

[(1, 278320816), (2, 139160408), (4, 69580204), (8, 34790102), (16, 17395051), (19, 14648464), (38, 7324232), (76, 3662116), (152, 1831058), (211, 1319056), (304, 915529), (422, 659528), (844, 329764), (1688, 164882), (3376, 82441), (4009, 69424), (4339, 64144), (8018, 34712), (8678, 32072), (16036, 17356)]