20169908020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{136523}}^1$

素因数の和:136704

約数の個数: 48

約数和(自身を含む): 43349100480

約数和(自身を除く): 23179192460

約数列:

[1, 2, 4, 5, 10, 20, 83, 89, 166, 178, 332, 356, 415, 445, 830, 890, 1660, 1780, 7387, 14774, 29548, 36935, 73870, 136523, 147740, 273046, 546092, 682615, 1365230, 2730460, 11331409, 12150547, 22662818, 24301094, 45325636, 48602188, 56657045, 60752735, 113314090, 121505470, 226628180, 243010940, 1008495401, 2016990802, 4033981604, 5042477005, 10084954010, 20169908020]

約数ペア:

[(1, 20169908020), (2, 10084954010), (4, 5042477005), (5, 4033981604), (10, 2016990802), (20, 1008495401), (83, 243010940), (89, 226628180), (166, 121505470), (178, 113314090), (332, 60752735), (356, 56657045), (415, 48602188), (445, 45325636), (830, 24301094), (890, 22662818), (1660, 12150547), (1780, 11331409), (7387, 2730460), (14774, 1365230), (29548, 682615), (36935, 546092), (73870, 273046), (136523, 147740)]