78990608

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{80933}}^1$

素因数の和:81002

約数の個数: 20

約数和(自身を含む): 155555148

約数和(自身を除く): 76564540

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 80933, 161866, 323732, 647464, 1294928, 4936913, 9873826, 19747652, 39495304, 78990608]

約数ペア:

[(1, 78990608), (2, 39495304), (4, 19747652), (8, 9873826), (16, 4936913), (61, 1294928), (122, 647464), (244, 323732), (488, 161866), (976, 80933)]