129312980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137567}}^1$

素因数の和:137623

約数の個数: 24

約数和(自身を含む): 277337088

約数和(自身を除く): 148024108

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 137567, 275134, 550268, 687835, 1375670, 2751340, 6465649, 12931298, 25862596, 32328245, 64656490, 129312980]

約数ペア:

[(1, 129312980), (2, 64656490), (4, 32328245), (5, 25862596), (10, 12931298), (20, 6465649), (47, 2751340), (94, 1375670), (188, 687835), (235, 550268), (470, 275134), (940, 137567)]