40180480

素因数分解:

$2^8\times 5^1\times {\mathrm{31391}}^1$

素因数の和:31412

約数の個数: 36

約数和(自身を含む): 96247872

約数和(自身を除く): 56067392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 31391, 62782, 125564, 156955, 251128, 313910, 502256, 627820, 1004512, 1255640, 2009024, 2511280, 4018048, 5022560, 8036096, 10045120, 20090240, 40180480]

約数ペア:

[(1, 40180480), (2, 20090240), (4, 10045120), (5, 8036096), (8, 5022560), (10, 4018048), (16, 2511280), (20, 2009024), (32, 1255640), (40, 1004512), (64, 627820), (80, 502256), (128, 313910), (160, 251128), (256, 156955), (320, 125564), (640, 62782), (1280, 31391)]