20177848990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{53101}}^1$

素因数の和:53237

約数の個数: 64

約数和(自身を含む): 40680380160

約数和(自身を除く): 20502531170

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 79, 130, 158, 185, 370, 395, 481, 790, 962, 1027, 2054, 2405, 2923, 4810, 5135, 5846, 10270, 14615, 29230, 37999, 53101, 75998, 106202, 189995, 265505, 379990, 531010, 690313, 1380626, 1964737, 3451565, 3929474, 4194979, 6903130, 8389958, 9823685, 19647370, 20974895, 25541581, 41949790, 51083162, 54534727, 109069454, 127707905, 155214223, 255415810, 272673635, 310428446, 545347270, 776071115, 1552142230, 2017784899, 4035569798, 10088924495, 20177848990]

約数ペア:

[(1, 20177848990), (2, 10088924495), (5, 4035569798), (10, 2017784899), (13, 1552142230), (26, 776071115), (37, 545347270), (65, 310428446), (74, 272673635), (79, 255415810), (130, 155214223), (158, 127707905), (185, 109069454), (370, 54534727), (395, 51083162), (481, 41949790), (790, 25541581), (962, 20974895), (1027, 19647370), (2054, 9823685), (2405, 8389958), (2923, 6903130), (4810, 4194979), (5135, 3929474), (5846, 3451565), (10270, 1964737), (14615, 1380626), (29230, 690313), (37999, 531010), (53101, 379990), (75998, 265505), (106202, 189995)]