31530520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{16087}}^1$

素因数の和:16112

約数の個数: 48

約数和(自身を含む): 82531440

約数和(自身を除く): 51000920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 16087, 32174, 64348, 80435, 112609, 128696, 160870, 225218, 321740, 450436, 563045, 643480, 788263, 900872, 1126090, 1576526, 2252180, 3153052, 3941315, 4504360, 6306104, 7882630, 15765260, 31530520]

約数ペア:

[(1, 31530520), (2, 15765260), (4, 7882630), (5, 6306104), (7, 4504360), (8, 3941315), (10, 3153052), (14, 2252180), (20, 1576526), (28, 1126090), (35, 900872), (40, 788263), (49, 643480), (56, 563045), (70, 450436), (98, 321740), (140, 225218), (196, 160870), (245, 128696), (280, 112609), (392, 80435), (490, 64348), (980, 32174), (1960, 16087)]