66012800

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{421}}^1$

素因数の和:459

約数の個数: 144

約数和(自身を含む): 190146870

約数和(自身を除く): 124134070

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 280, 320, 350, 392, 400, 421, 448, 490, 560, 640, 700, 784, 800, 842, 896, 980, 1120, 1225, 1400, 1568, 1600, 1684, 1960, 2105, 2240, 2450, 2800, 2947, 3136, 3200, 3368, 3920, 4210, 4480, 4900, 5600, 5894, 6272, 6736, 7840, 8420, 9800, 10525, 11200, 11788, 13472, 14735, 15680, 16840, 19600, 20629, 21050, 22400, 23576, 26944, 29470, 31360, 33680, 39200, 41258, 42100, 47152, 53888, 58940, 67360, 73675, 78400, 82516, 84200, 94304, 103145, 117880, 134720, 147350, 156800, 165032, 168400, 188608, 206290, 235760, 269440, 294700, 330064, 336800, 377216, 412580, 471520, 515725, 589400, 660128, 673600, 825160, 943040, 1031450, 1178800, 1320256, 1347200, 1650320, 1886080, 2062900, 2357600, 2640512, 3300640, 4125800, 4715200, 6601280, 8251600, 9430400, 13202560, 16503200, 33006400, 66012800]

約数ペア:

[(1, 66012800), (2, 33006400), (4, 16503200), (5, 13202560), (7, 9430400), (8, 8251600), (10, 6601280), (14, 4715200), (16, 4125800), (20, 3300640), (25, 2640512), (28, 2357600), (32, 2062900), (35, 1886080), (40, 1650320), (49, 1347200), (50, 1320256), (56, 1178800), (64, 1031450), (70, 943040), (80, 825160), (98, 673600), (100, 660128), (112, 589400), (128, 515725), (140, 471520), (160, 412580), (175, 377216), (196, 336800), (200, 330064), (224, 294700), (245, 269440), (280, 235760), (320, 206290), (350, 188608), (392, 168400), (400, 165032), (421, 156800), (448, 147350), (490, 134720), (560, 117880), (640, 103145), (700, 94304), (784, 84200), (800, 82516), (842, 78400), (896, 73675), (980, 67360), (1120, 58940), (1225, 53888), (1400, 47152), (1568, 42100), (1600, 41258), (1684, 39200), (1960, 33680), (2105, 31360), (2240, 29470), (2450, 26944), (2800, 23576), (2947, 22400), (3136, 21050), (3200, 20629), (3368, 19600), (3920, 16840), (4210, 15680), (4480, 14735), (4900, 13472), (5600, 11788), (5894, 11200), (6272, 10525), (6736, 9800), (7840, 8420)]