7212560

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1013}}^1$

素因数の和:1115

約数の個数: 40

約数和(自身を含む): 16974360

約数和(自身を除く): 9761800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1013, 1424, 1780, 2026, 3560, 4052, 5065, 7120, 8104, 10130, 16208, 20260, 40520, 81040, 90157, 180314, 360628, 450785, 721256, 901570, 1442512, 1803140, 3606280, 7212560]

約数ペア:

[(1, 7212560), (2, 3606280), (4, 1803140), (5, 1442512), (8, 901570), (10, 721256), (16, 450785), (20, 360628), (40, 180314), (80, 90157), (89, 81040), (178, 40520), (356, 20260), (445, 16208), (712, 10130), (890, 8104), (1013, 7120), (1424, 5065), (1780, 4052), (2026, 3560)]