25340980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{571}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 61117056

約数和(自身を除く): 35776076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 317, 571, 634, 1142, 1268, 1585, 2219, 2284, 2855, 3170, 3997, 4438, 5710, 6340, 7994, 8876, 11095, 11420, 15988, 19985, 22190, 39970, 44380, 79940, 181007, 362014, 724028, 905035, 1267049, 1810070, 2534098, 3620140, 5068196, 6335245, 12670490, 25340980]

約数ペア:

[(1, 25340980), (2, 12670490), (4, 6335245), (5, 5068196), (7, 3620140), (10, 2534098), (14, 1810070), (20, 1267049), (28, 905035), (35, 724028), (70, 362014), (140, 181007), (317, 79940), (571, 44380), (634, 39970), (1142, 22190), (1268, 19985), (1585, 15988), (2219, 11420), (2284, 11095), (2855, 8876), (3170, 7994), (3997, 6340), (4438, 5710)]