64879880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124769}}^1$

素因数の和:124793

約数の個数: 32

約数和(自身を含む): 157210200

約数和(自身を除く): 92330320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124769, 249538, 499076, 623845, 998152, 1247690, 1621997, 2495380, 3243994, 4990760, 6487988, 8109985, 12975976, 16219970, 32439940, 64879880]

約数ペア:

[(1, 64879880), (2, 32439940), (4, 16219970), (5, 12975976), (8, 8109985), (10, 6487988), (13, 4990760), (20, 3243994), (26, 2495380), (40, 1621997), (52, 1247690), (65, 998152), (104, 623845), (130, 499076), (260, 249538), (520, 124769)]