29281000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 128

約数和(自身を含む): 80870400

約数和(自身を除く): 51589400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 47, 50, 56, 70, 89, 94, 100, 125, 140, 175, 178, 188, 200, 235, 250, 280, 329, 350, 356, 376, 445, 470, 500, 623, 658, 700, 712, 875, 890, 940, 1000, 1175, 1246, 1316, 1400, 1645, 1750, 1780, 1880, 2225, 2350, 2492, 2632, 3115, 3290, 3500, 3560, 4183, 4450, 4700, 4984, 5875, 6230, 6580, 7000, 8225, 8366, 8900, 9400, 11125, 11750, 12460, 13160, 15575, 16450, 16732, 17800, 20915, 22250, 23500, 24920, 29281, 31150, 32900, 33464, 41125, 41830, 44500, 47000, 58562, 62300, 65800, 77875, 82250, 83660, 89000, 104575, 117124, 124600, 146405, 155750, 164500, 167320, 209150, 234248, 292810, 311500, 329000, 418300, 522875, 585620, 623000, 732025, 836600, 1045750, 1171240, 1464050, 2091500, 2928100, 3660125, 4183000, 5856200, 7320250, 14640500, 29281000]

約数ペア:

[(1, 29281000), (2, 14640500), (4, 7320250), (5, 5856200), (7, 4183000), (8, 3660125), (10, 2928100), (14, 2091500), (20, 1464050), (25, 1171240), (28, 1045750), (35, 836600), (40, 732025), (47, 623000), (50, 585620), (56, 522875), (70, 418300), (89, 329000), (94, 311500), (100, 292810), (125, 234248), (140, 209150), (175, 167320), (178, 164500), (188, 155750), (200, 146405), (235, 124600), (250, 117124), (280, 104575), (329, 89000), (350, 83660), (356, 82250), (376, 77875), (445, 65800), (470, 62300), (500, 58562), (623, 47000), (658, 44500), (700, 41830), (712, 41125), (875, 33464), (890, 32900), (940, 31150), (1000, 29281), (1175, 24920), (1246, 23500), (1316, 22250), (1400, 20915), (1645, 17800), (1750, 16732), (1780, 16450), (1880, 15575), (2225, 13160), (2350, 12460), (2492, 11750), (2632, 11125), (3115, 9400), (3290, 8900), (3500, 8366), (3560, 8225), (4183, 7000), (4450, 6580), (4700, 6230), (4984, 5875)]