168386420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{8761}}^1$

素因数の和:8832

約数の個数: 36

約数和(自身を含む): 365427972

約数和(自身を除く): 197041552

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4805, 8761, 9610, 17522, 19220, 35044, 43805, 87610, 175220, 271591, 543182, 1086364, 1357955, 2715910, 5431820, 8419321, 16838642, 33677284, 42096605, 84193210, 168386420]

約数ペア:

[(1, 168386420), (2, 84193210), (4, 42096605), (5, 33677284), (10, 16838642), (20, 8419321), (31, 5431820), (62, 2715910), (124, 1357955), (155, 1086364), (310, 543182), (620, 271591), (961, 175220), (1922, 87610), (3844, 43805), (4805, 35044), (8761, 19220), (9610, 17522)]