1296002560

素因数分解:

$2^9\times 5^1\times {\mathrm{506251}}^1$

素因数の和:506274

約数の個数: 40

約数和(自身を含む): 3107374776

約数和(自身を除く): 1811372216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 506251, 1012502, 2025004, 2531255, 4050008, 5062510, 8100016, 10125020, 16200032, 20250040, 32400064, 40500080, 64800128, 81000160, 129600256, 162000320, 259200512, 324000640, 648001280, 1296002560]

約数ペア:

[(1, 1296002560), (2, 648001280), (4, 324000640), (5, 259200512), (8, 162000320), (10, 129600256), (16, 81000160), (20, 64800128), (32, 40500080), (40, 32400064), (64, 20250040), (80, 16200032), (128, 10125020), (160, 8100016), (256, 5062510), (320, 4050008), (512, 2531255), (640, 2025004), (1280, 1012502), (2560, 506251)]