80720500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{23063}}^1$

素因数の和:23089

約数の個数: 48

約数和(自身を含む): 201487104

約数和(自身を除く): 120766604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 23063, 46126, 92252, 115315, 161441, 230630, 322882, 461260, 576575, 645764, 807205, 1153150, 1614410, 2306300, 2882875, 3228820, 4036025, 5765750, 8072050, 11531500, 16144100, 20180125, 40360250, 80720500]

約数ペア:

[(1, 80720500), (2, 40360250), (4, 20180125), (5, 16144100), (7, 11531500), (10, 8072050), (14, 5765750), (20, 4036025), (25, 3228820), (28, 2882875), (35, 2306300), (50, 1614410), (70, 1153150), (100, 807205), (125, 645764), (140, 576575), (175, 461260), (250, 322882), (350, 230630), (500, 161441), (700, 115315), (875, 92252), (1750, 46126), (3500, 23063)]