205712500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{2351}}^1$

素因数の和:2387

約数の個数: 72

約数和(自身を含む): 514467072

約数和(自身を除く): 308754572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 625, 700, 875, 1250, 1750, 2351, 2500, 3125, 3500, 4375, 4702, 6250, 8750, 9404, 11755, 12500, 16457, 17500, 21875, 23510, 32914, 43750, 47020, 58775, 65828, 82285, 87500, 117550, 164570, 235100, 293875, 329140, 411425, 587750, 822850, 1175500, 1469375, 1645700, 2057125, 2938750, 4114250, 5877500, 7346875, 8228500, 10285625, 14693750, 20571250, 29387500, 41142500, 51428125, 102856250, 205712500]

約数ペア:

[(1, 205712500), (2, 102856250), (4, 51428125), (5, 41142500), (7, 29387500), (10, 20571250), (14, 14693750), (20, 10285625), (25, 8228500), (28, 7346875), (35, 5877500), (50, 4114250), (70, 2938750), (100, 2057125), (125, 1645700), (140, 1469375), (175, 1175500), (250, 822850), (350, 587750), (500, 411425), (625, 329140), (700, 293875), (875, 235100), (1250, 164570), (1750, 117550), (2351, 87500), (2500, 82285), (3125, 65828), (3500, 58775), (4375, 47020), (4702, 43750), (6250, 32914), (8750, 23510), (9404, 21875), (11755, 17500), (12500, 16457)]