20161864888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1361}}^1\times {\mathrm{2371}}^1$

素因数の和:3820

約数の個数: 64

約数和(自身を含む): 41869405440

約数和(自身を除く): 21707540552

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1361, 1562, 2371, 2722, 3124, 4742, 5444, 6248, 9484, 10888, 14971, 18968, 26081, 29942, 52162, 59884, 96631, 104324, 119768, 168341, 193262, 208648, 336682, 386524, 673364, 773048, 1062941, 1346728, 1851751, 2125882, 3226931, 3703502, 4251764, 6453862, 7407004, 8503528, 12907724, 14814008, 25815448, 35496241, 70992482, 141984964, 229112101, 283969928, 458224202, 916448404, 1832896808, 2520233111, 5040466222, 10080932444, 20161864888]

約数ペア:

[(1, 20161864888), (2, 10080932444), (4, 5040466222), (8, 2520233111), (11, 1832896808), (22, 916448404), (44, 458224202), (71, 283969928), (88, 229112101), (142, 141984964), (284, 70992482), (568, 35496241), (781, 25815448), (1361, 14814008), (1562, 12907724), (2371, 8503528), (2722, 7407004), (3124, 6453862), (4742, 4251764), (5444, 3703502), (6248, 3226931), (9484, 2125882), (10888, 1851751), (14971, 1346728), (18968, 1062941), (26081, 773048), (29942, 673364), (52162, 386524), (59884, 336682), (96631, 208648), (104324, 193262), (119768, 168341)]