321440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1$

素因数の和:70

約数の個数: 72

約数和(自身を含む): 904932

約数和(自身を除く): 583492

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 160, 164, 196, 205, 224, 245, 280, 287, 328, 392, 410, 490, 560, 574, 656, 784, 820, 980, 1120, 1148, 1312, 1435, 1568, 1640, 1960, 2009, 2296, 2870, 3280, 3920, 4018, 4592, 5740, 6560, 7840, 8036, 9184, 10045, 11480, 16072, 20090, 22960, 32144, 40180, 45920, 64288, 80360, 160720, 321440]

約数ペア:

[(1, 321440), (2, 160720), (4, 80360), (5, 64288), (7, 45920), (8, 40180), (10, 32144), (14, 22960), (16, 20090), (20, 16072), (28, 11480), (32, 10045), (35, 9184), (40, 8036), (41, 7840), (49, 6560), (56, 5740), (70, 4592), (80, 4018), (82, 3920), (98, 3280), (112, 2870), (140, 2296), (160, 2009), (164, 1960), (196, 1640), (205, 1568), (224, 1435), (245, 1312), (280, 1148), (287, 1120), (328, 980), (392, 820), (410, 784), (490, 656), (560, 574)]