161123840

素因数分解:

$2^9\times 5^1\times {\mathrm{62939}}^1$

素因数の和:62962

約数の個数: 40

約数和(自身を含む): 386325720

約数和(自身を除く): 225201880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 62939, 125878, 251756, 314695, 503512, 629390, 1007024, 1258780, 2014048, 2517560, 4028096, 5035120, 8056192, 10070240, 16112384, 20140480, 32224768, 40280960, 80561920, 161123840]

約数ペア:

[(1, 161123840), (2, 80561920), (4, 40280960), (5, 32224768), (8, 20140480), (10, 16112384), (16, 10070240), (20, 8056192), (32, 5035120), (40, 4028096), (64, 2517560), (80, 2014048), (128, 1258780), (160, 1007024), (256, 629390), (320, 503512), (512, 314695), (640, 251756), (1280, 125878), (2560, 62939)]