81457072

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{57203}}^1$

素因数の和:57300

約数の個数: 20

約数和(自身を含む): 159599160

約数和(自身を除く): 78142088

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 57203, 114406, 228812, 457624, 915248, 5091067, 10182134, 20364268, 40728536, 81457072]

約数ペア:

[(1, 81457072), (2, 40728536), (4, 20364268), (8, 10182134), (16, 5091067), (89, 915248), (178, 457624), (356, 228812), (712, 114406), (1424, 57203)]