400482880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{25541}}^1$

素因数の和:25572

約数の個数: 84

約数和(自身を含む): 1109391228

約数和(自身を除く): 708908348

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15680, 25541, 51082, 102164, 127705, 178787, 204328, 255410, 357574, 408656, 510820, 715148, 817312, 893935, 1021640, 1251509, 1430296, 1634624, 1787870, 2043280, 2503018, 2860592, 3575740, 4086560, 5006036, 5721184, 6257545, 7151480, 8173120, 10012072, 11442368, 12515090, 14302960, 20024144, 25030180, 28605920, 40048288, 50060360, 57211840, 80096576, 100120720, 200241440, 400482880]

約数ペア:

[(1, 400482880), (2, 200241440), (4, 100120720), (5, 80096576), (7, 57211840), (8, 50060360), (10, 40048288), (14, 28605920), (16, 25030180), (20, 20024144), (28, 14302960), (32, 12515090), (35, 11442368), (40, 10012072), (49, 8173120), (56, 7151480), (64, 6257545), (70, 5721184), (80, 5006036), (98, 4086560), (112, 3575740), (140, 2860592), (160, 2503018), (196, 2043280), (224, 1787870), (245, 1634624), (280, 1430296), (320, 1251509), (392, 1021640), (448, 893935), (490, 817312), (560, 715148), (784, 510820), (980, 408656), (1120, 357574), (1568, 255410), (1960, 204328), (2240, 178787), (3136, 127705), (3920, 102164), (7840, 51082), (15680, 25541)]