20269900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1303

約数の個数: 72

約数和(自身を含む): 52496640

約数和(自身を除く): 32226740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1259, 1610, 2300, 2518, 3220, 4025, 5036, 6295, 8050, 8813, 12590, 16100, 17626, 25180, 28957, 31475, 35252, 44065, 57914, 62950, 88130, 115828, 125900, 144785, 176260, 202699, 220325, 289570, 405398, 440650, 579140, 723925, 810796, 881300, 1013495, 1447850, 2026990, 2895700, 4053980, 5067475, 10134950, 20269900]

約数ペア:

[(1, 20269900), (2, 10134950), (4, 5067475), (5, 4053980), (7, 2895700), (10, 2026990), (14, 1447850), (20, 1013495), (23, 881300), (25, 810796), (28, 723925), (35, 579140), (46, 440650), (50, 405398), (70, 289570), (92, 220325), (100, 202699), (115, 176260), (140, 144785), (161, 125900), (175, 115828), (230, 88130), (322, 62950), (350, 57914), (460, 44065), (575, 35252), (644, 31475), (700, 28957), (805, 25180), (1150, 17626), (1259, 16100), (1610, 12590), (2300, 8813), (2518, 8050), (3220, 6295), (4025, 5036)]