12899900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9923}}^1$

素因数の和:9950

約数の個数: 36

約数和(自身を含む): 30149112

約数和(自身を除く): 17249212

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 9923, 19846, 39692, 49615, 99230, 128999, 198460, 248075, 257998, 496150, 515996, 644995, 992300, 1289990, 2579980, 3224975, 6449950, 12899900]

約数ペア:

[(1, 12899900), (2, 6449950), (4, 3224975), (5, 2579980), (10, 1289990), (13, 992300), (20, 644995), (25, 515996), (26, 496150), (50, 257998), (52, 248075), (65, 198460), (100, 128999), (130, 99230), (260, 49615), (325, 39692), (650, 19846), (1300, 9923)]