2638240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1499}}^1$

素因数の和:1525

約数の個数: 48

約数和(自身を含む): 6804000

約数和(自身を除く): 4165760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1499, 1760, 2998, 5996, 7495, 11992, 14990, 16489, 23984, 29980, 32978, 47968, 59960, 65956, 82445, 119920, 131912, 164890, 239840, 263824, 329780, 527648, 659560, 1319120, 2638240]

約数ペア:

[(1, 2638240), (2, 1319120), (4, 659560), (5, 527648), (8, 329780), (10, 263824), (11, 239840), (16, 164890), (20, 131912), (22, 119920), (32, 82445), (40, 65956), (44, 59960), (55, 47968), (80, 32978), (88, 29980), (110, 23984), (160, 16489), (176, 14990), (220, 11992), (352, 7495), (440, 5996), (880, 2998), (1499, 1760)]