20576764

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:590

約数の個数: 36

約数和(自身を含む): 39711000

約数和(自身を除く): 19134236

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 169, 244, 338, 499, 676, 793, 998, 1586, 1996, 3172, 6487, 10309, 12974, 20618, 25948, 30439, 41236, 60878, 84331, 121756, 168662, 337324, 395707, 791414, 1582828, 5144191, 10288382, 20576764]

約数ペア:

[(1, 20576764), (2, 10288382), (4, 5144191), (13, 1582828), (26, 791414), (52, 395707), (61, 337324), (122, 168662), (169, 121756), (244, 84331), (338, 60878), (499, 41236), (676, 30439), (793, 25948), (998, 20618), (1586, 12974), (1996, 10309), (3172, 6487)]