71380480

素因数分解:

$2^9\times 5^1\times {\mathrm{27883}}^1$

素因数の和:27906

約数の個数: 40

約数和(自身を含む): 171151992

約数和(自身を除く): 99771512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 27883, 55766, 111532, 139415, 223064, 278830, 446128, 557660, 892256, 1115320, 1784512, 2230640, 3569024, 4461280, 7138048, 8922560, 14276096, 17845120, 35690240, 71380480]

約数ペア:

[(1, 71380480), (2, 35690240), (4, 17845120), (5, 14276096), (8, 8922560), (10, 7138048), (16, 4461280), (20, 3569024), (32, 2230640), (40, 1784512), (64, 1115320), (80, 892256), (128, 557660), (160, 446128), (256, 278830), (320, 223064), (512, 139415), (640, 111532), (1280, 55766), (2560, 27883)]