31720960

素因数分解:

$2^9\times 5^1\times {\mathrm{12391}}^1$

素因数の和:12414

約数の個数: 40

約数和(自身を含む): 76062096

約数和(自身を除く): 44341136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 12391, 24782, 49564, 61955, 99128, 123910, 198256, 247820, 396512, 495640, 793024, 991280, 1586048, 1982560, 3172096, 3965120, 6344192, 7930240, 15860480, 31720960]

約数ペア:

[(1, 31720960), (2, 15860480), (4, 7930240), (5, 6344192), (8, 3965120), (10, 3172096), (16, 1982560), (20, 1586048), (32, 991280), (40, 793024), (64, 495640), (80, 396512), (128, 247820), (160, 198256), (256, 123910), (320, 99128), (512, 61955), (640, 49564), (1280, 24782), (2560, 12391)]