20312656

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2028

約数の個数: 60

約数和(自身を含む): 49327572

約数和(自身を除く): 29014916

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 1993, 2548, 3986, 5096, 7972, 10192, 13951, 15944, 25909, 27902, 31888, 51818, 55804, 97657, 103636, 111608, 181363, 195314, 207272, 223216, 362726, 390628, 414544, 725452, 781256, 1269541, 1450904, 1562512, 2539082, 2901808, 5078164, 10156328, 20312656]

約数ペア:

[(1, 20312656), (2, 10156328), (4, 5078164), (7, 2901808), (8, 2539082), (13, 1562512), (14, 1450904), (16, 1269541), (26, 781256), (28, 725452), (49, 414544), (52, 390628), (56, 362726), (91, 223216), (98, 207272), (104, 195314), (112, 181363), (182, 111608), (196, 103636), (208, 97657), (364, 55804), (392, 51818), (637, 31888), (728, 27902), (784, 25909), (1274, 15944), (1456, 13951), (1993, 10192), (2548, 7972), (3986, 5096)]