2811160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6389}}^1$

素因数の和:6411

約数の個数: 32

約数和(自身を含む): 6901200

約数和(自身を除く): 4090040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 6389, 12778, 25556, 31945, 51112, 63890, 70279, 127780, 140558, 255560, 281116, 351395, 562232, 702790, 1405580, 2811160]

約数ペア:

[(1, 2811160), (2, 1405580), (4, 702790), (5, 562232), (8, 351395), (10, 281116), (11, 255560), (20, 140558), (22, 127780), (40, 70279), (44, 63890), (55, 51112), (88, 31945), (110, 25556), (220, 12778), (440, 6389)]