81870628

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{94321}}^1$

素因数の和:94363

約数の個数: 24

約数和(自身を含む): 169025024

約数和(自身を除く): 87154396

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 94321, 188642, 377284, 660247, 1320494, 2640988, 2923951, 5847902, 11695804, 20467657, 40935314, 81870628]

約数ペア:

[(1, 81870628), (2, 40935314), (4, 20467657), (7, 11695804), (14, 5847902), (28, 2923951), (31, 2640988), (62, 1320494), (124, 660247), (217, 377284), (434, 188642), (868, 94321)]