12939950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 25913520

約数和(自身を除く): 12973570

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 53, 95, 106, 190, 257, 265, 475, 514, 530, 950, 1007, 1285, 1325, 2014, 2570, 2650, 4883, 5035, 6425, 9766, 10070, 12850, 13621, 24415, 25175, 27242, 48830, 50350, 68105, 122075, 136210, 244150, 258799, 340525, 517598, 681050, 1293995, 2587990, 6469975, 12939950]

約数ペア:

[(1, 12939950), (2, 6469975), (5, 2587990), (10, 1293995), (19, 681050), (25, 517598), (38, 340525), (50, 258799), (53, 244150), (95, 136210), (106, 122075), (190, 68105), (257, 50350), (265, 48830), (475, 27242), (514, 25175), (530, 24415), (950, 13621), (1007, 12850), (1285, 10070), (1325, 9766), (2014, 6425), (2570, 5035), (2650, 4883)]