2805198893

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 3533544000

約数和(自身を除く): 728345107

約数列:

[1, 7, 19, 49, 53, 133, 139, 371, 409, 931, 973, 1007, 2597, 2641, 2863, 6811, 7049, 7367, 7771, 18487, 20041, 21677, 49343, 51569, 54397, 56851, 129409, 139973, 151739, 360983, 380779, 397957, 411863, 979811, 1062173, 1080169, 2785699, 2883041, 3013103, 6858677, 7561183, 20181287, 21091721, 52928281, 57248957, 147642047, 400742699, 2805198893]

約数ペア:

[(1, 2805198893), (7, 400742699), (19, 147642047), (49, 57248957), (53, 52928281), (133, 21091721), (139, 20181287), (371, 7561183), (409, 6858677), (931, 3013103), (973, 2883041), (1007, 2785699), (2597, 1080169), (2641, 1062173), (2863, 979811), (6811, 411863), (7049, 397957), (7367, 380779), (7771, 360983), (18487, 151739), (20041, 139973), (21677, 129409), (49343, 56851), (51569, 54397)]