638544738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1439}}^1\times {\mathrm{5689}}^1$

素因数の和:7146

約数の個数: 32

約数和(自身を含む): 1376524800

約数和(自身を除く): 737980062

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1439, 2878, 4317, 5689, 8634, 11378, 17067, 18707, 34134, 37414, 56121, 73957, 112242, 147914, 221871, 443742, 8186471, 16372942, 24559413, 49118826, 106424123, 212848246, 319272369, 638544738]

約数ペア:

[(1, 638544738), (2, 319272369), (3, 212848246), (6, 106424123), (13, 49118826), (26, 24559413), (39, 16372942), (78, 8186471), (1439, 443742), (2878, 221871), (4317, 147914), (5689, 112242), (8634, 73957), (11378, 56121), (17067, 37414), (18707, 34134)]