153428920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{123733}}^1$

素因数の和:123775

約数の個数: 32

約数和(自身を含む): 356353920

約数和(自身を除く): 202925000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 123733, 247466, 494932, 618665, 989864, 1237330, 2474660, 3835723, 4949320, 7671446, 15342892, 19178615, 30685784, 38357230, 76714460, 153428920]

約数ペア:

[(1, 153428920), (2, 76714460), (4, 38357230), (5, 30685784), (8, 19178615), (10, 15342892), (20, 7671446), (31, 4949320), (40, 3835723), (62, 2474660), (124, 1237330), (155, 989864), (248, 618665), (310, 494932), (620, 247466), (1240, 123733)]