20317570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 25405310

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 83, 91, 130, 166, 182, 269, 415, 455, 538, 581, 830, 910, 1079, 1162, 1345, 1883, 2158, 2690, 2905, 3497, 3766, 5395, 5810, 6994, 7553, 9415, 10790, 15106, 17485, 18830, 22327, 24479, 34970, 37765, 44654, 48958, 75530, 111635, 122395, 156289, 223270, 244790, 290251, 312578, 580502, 781445, 1451255, 1562890, 2031757, 2902510, 4063514, 10158785, 20317570]

約数ペア:

[(1, 20317570), (2, 10158785), (5, 4063514), (7, 2902510), (10, 2031757), (13, 1562890), (14, 1451255), (26, 781445), (35, 580502), (65, 312578), (70, 290251), (83, 244790), (91, 223270), (130, 156289), (166, 122395), (182, 111635), (269, 75530), (415, 48958), (455, 44654), (538, 37765), (581, 34970), (830, 24479), (910, 22327), (1079, 18830), (1162, 17485), (1345, 15106), (1883, 10790), (2158, 9415), (2690, 7553), (2905, 6994), (3497, 5810), (3766, 5395)]