18320200

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{659}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 42966000

約数和(自身を除く): 24645800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 556, 659, 695, 1112, 1318, 1390, 2636, 2780, 3295, 3475, 5272, 5560, 6590, 6950, 13180, 13900, 16475, 26360, 27800, 32950, 65900, 91601, 131800, 183202, 366404, 458005, 732808, 916010, 1832020, 2290025, 3664040, 4580050, 9160100, 18320200]

約数ペア:

[(1, 18320200), (2, 9160100), (4, 4580050), (5, 3664040), (8, 2290025), (10, 1832020), (20, 916010), (25, 732808), (40, 458005), (50, 366404), (100, 183202), (139, 131800), (200, 91601), (278, 65900), (556, 32950), (659, 27800), (695, 26360), (1112, 16475), (1318, 13900), (1390, 13180), (2636, 6950), (2780, 6590), (3295, 5560), (3475, 5272)]