28260680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100931}}^1$

素因数の和:100949

約数の個数: 32

約数和(自身を含む): 72671040

約数和(自身を除く): 44410360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100931, 201862, 403724, 504655, 706517, 807448, 1009310, 1413034, 2018620, 2826068, 3532585, 4037240, 5652136, 7065170, 14130340, 28260680]

約数ペア:

[(1, 28260680), (2, 14130340), (4, 7065170), (5, 5652136), (7, 4037240), (8, 3532585), (10, 2826068), (14, 2018620), (20, 1413034), (28, 1009310), (35, 807448), (40, 706517), (56, 504655), (70, 403724), (140, 201862), (280, 100931)]