80502280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22613}}^1$

素因数の和:22713

約数の個数: 32

約数和(自身を含む): 183173400

約数和(自身を除く): 102671120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 22613, 45226, 90452, 113065, 180904, 226130, 452260, 904520, 2012557, 4025114, 8050228, 10062785, 16100456, 20125570, 40251140, 80502280]

約数ペア:

[(1, 80502280), (2, 40251140), (4, 20125570), (5, 16100456), (8, 10062785), (10, 8050228), (20, 4025114), (40, 2012557), (89, 904520), (178, 452260), (356, 226130), (445, 180904), (712, 113065), (890, 90452), (1780, 45226), (3560, 22613)]