20391072

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{16339}}^1$

素因数の和:16365

約数の個数: 48

約数和(自身を含む): 57647520

約数和(自身を除く): 37256448

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 16339, 32678, 49017, 65356, 98034, 130712, 196068, 212407, 261424, 392136, 424814, 522848, 637221, 784272, 849628, 1274442, 1568544, 1699256, 2548884, 3398512, 5097768, 6797024, 10195536, 20391072]

約数ペア:

[(1, 20391072), (2, 10195536), (3, 6797024), (4, 5097768), (6, 3398512), (8, 2548884), (12, 1699256), (13, 1568544), (16, 1274442), (24, 849628), (26, 784272), (32, 637221), (39, 522848), (48, 424814), (52, 392136), (78, 261424), (96, 212407), (104, 196068), (156, 130712), (208, 98034), (312, 65356), (416, 49017), (624, 32678), (1248, 16339)]