20571530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 25151350

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 59, 70, 85, 118, 119, 170, 238, 293, 295, 413, 586, 590, 595, 826, 1003, 1190, 1465, 2006, 2051, 2065, 2930, 4102, 4130, 4981, 5015, 7021, 9962, 10030, 10255, 14042, 17287, 20510, 24905, 34574, 34867, 35105, 49810, 69734, 70210, 86435, 121009, 172870, 174335, 242018, 293879, 348670, 587758, 605045, 1210090, 1469395, 2057153, 2938790, 4114306, 10285765, 20571530]

約数ペア:

[(1, 20571530), (2, 10285765), (5, 4114306), (7, 2938790), (10, 2057153), (14, 1469395), (17, 1210090), (34, 605045), (35, 587758), (59, 348670), (70, 293879), (85, 242018), (118, 174335), (119, 172870), (170, 121009), (238, 86435), (293, 70210), (295, 69734), (413, 49810), (586, 35105), (590, 34867), (595, 34574), (826, 24905), (1003, 20510), (1190, 17287), (1465, 14042), (2006, 10255), (2051, 10030), (2065, 9962), (2930, 7021), (4102, 5015), (4130, 4981)]