20485192

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1481}}^1$

素因数の和:1526

約数の個数: 64

約数和(自身を含む): 49795200

約数和(自身を除く): 29310008

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1481, 1729, 1976, 2962, 3458, 5924, 6916, 10367, 11848, 13832, 19253, 20734, 28139, 38506, 41468, 56278, 77012, 82936, 112556, 134771, 154024, 196973, 225112, 269542, 365807, 393946, 539084, 731614, 787892, 1078168, 1463228, 1575784, 2560649, 2926456, 5121298, 10242596, 20485192]

約数ペア:

[(1, 20485192), (2, 10242596), (4, 5121298), (7, 2926456), (8, 2560649), (13, 1575784), (14, 1463228), (19, 1078168), (26, 787892), (28, 731614), (38, 539084), (52, 393946), (56, 365807), (76, 269542), (91, 225112), (104, 196973), (133, 154024), (152, 134771), (182, 112556), (247, 82936), (266, 77012), (364, 56278), (494, 41468), (532, 38506), (728, 28139), (988, 20734), (1064, 19253), (1481, 13832), (1729, 11848), (1976, 10367), (2962, 6916), (3458, 5924)]