17955340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 41404608

約数和(自身を除く): 23449268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1303, 1378, 2606, 2756, 3445, 5212, 6515, 6890, 13030, 13780, 16939, 26060, 33878, 67756, 69059, 84695, 138118, 169390, 276236, 338780, 345295, 690590, 897767, 1381180, 1795534, 3591068, 4488835, 8977670, 17955340]

約数ペア:

[(1, 17955340), (2, 8977670), (4, 4488835), (5, 3591068), (10, 1795534), (13, 1381180), (20, 897767), (26, 690590), (52, 345295), (53, 338780), (65, 276236), (106, 169390), (130, 138118), (212, 84695), (260, 69059), (265, 67756), (530, 33878), (689, 26060), (1060, 16939), (1303, 13780), (1378, 13030), (2606, 6890), (2756, 6515), (3445, 5212)]