820100

素因数分解:

$2^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 36

約数和(自身を含む): 1822800

約数和(自身を除く): 1002700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 59, 100, 118, 139, 236, 278, 295, 556, 590, 695, 1180, 1390, 1475, 2780, 2950, 3475, 5900, 6950, 8201, 13900, 16402, 32804, 41005, 82010, 164020, 205025, 410050, 820100]

約数ペア:

[(1, 820100), (2, 410050), (4, 205025), (5, 164020), (10, 82010), (20, 41005), (25, 32804), (50, 16402), (59, 13900), (100, 8201), (118, 6950), (139, 5900), (236, 3475), (278, 2950), (295, 2780), (556, 1475), (590, 1390), (695, 1180)]