18368240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20873}}^1$

素因数の和:20897

約数の個数: 40

約数和(自身を含む): 46590768

約数和(自身を除く): 28222528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20873, 41746, 83492, 104365, 166984, 208730, 229603, 333968, 417460, 459206, 834920, 918412, 1148015, 1669840, 1836824, 2296030, 3673648, 4592060, 9184120, 18368240]

約数ペア:

[(1, 18368240), (2, 9184120), (4, 4592060), (5, 3673648), (8, 2296030), (10, 1836824), (11, 1669840), (16, 1148015), (20, 918412), (22, 834920), (40, 459206), (44, 417460), (55, 333968), (80, 229603), (88, 208730), (110, 166984), (176, 104365), (220, 83492), (440, 41746), (880, 20873)]