19470320

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{947}}^1$

素因数の和:1217

約数の個数: 40

約数和(自身を含む): 45492624

約数和(自身を除く): 26022304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 947, 1028, 1285, 1894, 2056, 2570, 3788, 4112, 4735, 5140, 7576, 9470, 10280, 15152, 18940, 20560, 37880, 75760, 243379, 486758, 973516, 1216895, 1947032, 2433790, 3894064, 4867580, 9735160, 19470320]

約数ペア:

[(1, 19470320), (2, 9735160), (4, 4867580), (5, 3894064), (8, 2433790), (10, 1947032), (16, 1216895), (20, 973516), (40, 486758), (80, 243379), (257, 75760), (514, 37880), (947, 20560), (1028, 18940), (1285, 15152), (1894, 10280), (2056, 9470), (2570, 7576), (3788, 5140), (4112, 4735)]