19265540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{571}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 46510464

約数和(自身を除く): 27244924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 241, 482, 571, 964, 1142, 1205, 1687, 2284, 2410, 2855, 3374, 3997, 4820, 5710, 6748, 7994, 8435, 11420, 15988, 16870, 19985, 33740, 39970, 79940, 137611, 275222, 550444, 688055, 963277, 1376110, 1926554, 2752220, 3853108, 4816385, 9632770, 19265540]

約数ペア:

[(1, 19265540), (2, 9632770), (4, 4816385), (5, 3853108), (7, 2752220), (10, 1926554), (14, 1376110), (20, 963277), (28, 688055), (35, 550444), (70, 275222), (140, 137611), (241, 79940), (482, 39970), (571, 33740), (964, 19985), (1142, 16870), (1205, 15988), (1687, 11420), (2284, 8435), (2410, 7994), (2855, 6748), (3374, 5710), (3997, 4820)]