21788637520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1232389}}^1$

素因数の和:1232432

約数の個数: 80

約数和(自身を含む): 57764584080

約数和(自身を除く): 35975946560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 8840, 17680, 1232389, 2464778, 4929556, 6161945, 9859112, 12323890, 16021057, 19718224, 20950613, 24647780, 32042114, 41901226, 49295560, 64084228, 80105285, 83802452, 98591120, 104753065, 128168456, 160210570, 167604904, 209506130, 256336912, 272357969, 320421140, 335209808, 419012260, 544715938, 640842280, 838024520, 1089431876, 1281684560, 1361789845, 1676049040, 2178863752, 2723579690, 4357727504, 5447159380, 10894318760, 21788637520]

約数ペア:

[(1, 21788637520), (2, 10894318760), (4, 5447159380), (5, 4357727504), (8, 2723579690), (10, 2178863752), (13, 1676049040), (16, 1361789845), (17, 1281684560), (20, 1089431876), (26, 838024520), (34, 640842280), (40, 544715938), (52, 419012260), (65, 335209808), (68, 320421140), (80, 272357969), (85, 256336912), (104, 209506130), (130, 167604904), (136, 160210570), (170, 128168456), (208, 104753065), (221, 98591120), (260, 83802452), (272, 80105285), (340, 64084228), (442, 49295560), (520, 41901226), (680, 32042114), (884, 24647780), (1040, 20950613), (1105, 19718224), (1360, 16021057), (1768, 12323890), (2210, 9859112), (3536, 6161945), (4420, 4929556), (8840, 2464778), (17680, 1232389)]