71821360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1382

約数の個数: 80

約数和(自身を含む): 183363264

約数和(自身を除く): 111541904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1303, 1378, 2120, 2606, 2756, 3445, 4240, 5212, 5512, 6515, 6890, 10424, 11024, 13030, 13780, 16939, 20848, 26060, 27560, 33878, 52120, 55120, 67756, 69059, 84695, 104240, 135512, 138118, 169390, 271024, 276236, 338780, 345295, 552472, 677560, 690590, 897767, 1104944, 1355120, 1381180, 1795534, 2762360, 3591068, 4488835, 5524720, 7182136, 8977670, 14364272, 17955340, 35910680, 71821360]

約数ペア:

[(1, 71821360), (2, 35910680), (4, 17955340), (5, 14364272), (8, 8977670), (10, 7182136), (13, 5524720), (16, 4488835), (20, 3591068), (26, 2762360), (40, 1795534), (52, 1381180), (53, 1355120), (65, 1104944), (80, 897767), (104, 690590), (106, 677560), (130, 552472), (208, 345295), (212, 338780), (260, 276236), (265, 271024), (424, 169390), (520, 138118), (530, 135512), (689, 104240), (848, 84695), (1040, 69059), (1060, 67756), (1303, 55120), (1378, 52120), (2120, 33878), (2606, 27560), (2756, 26060), (3445, 20848), (4240, 16939), (5212, 13780), (5512, 13030), (6515, 11024), (6890, 10424)]