319760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{571}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 851136

約数和(自身を除く): 531376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 571, 1142, 2284, 2855, 3997, 4568, 5710, 7994, 9136, 11420, 15988, 19985, 22840, 31976, 39970, 45680, 63952, 79940, 159880, 319760]

約数ペア:

[(1, 319760), (2, 159880), (4, 79940), (5, 63952), (7, 45680), (8, 39970), (10, 31976), (14, 22840), (16, 19985), (20, 15988), (28, 11420), (35, 9136), (40, 7994), (56, 5710), (70, 4568), (80, 3997), (112, 2855), (140, 2284), (280, 1142), (560, 571)]