18031720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64399}}^1$

素因数の和:64417

約数の個数: 32

約数和(自身を含む): 46368000

約数和(自身を除く): 28336280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64399, 128798, 257596, 321995, 450793, 515192, 643990, 901586, 1287980, 1803172, 2253965, 2575960, 3606344, 4507930, 9015860, 18031720]

約数ペア:

[(1, 18031720), (2, 9015860), (4, 4507930), (5, 3606344), (7, 2575960), (8, 2253965), (10, 1803172), (14, 1287980), (20, 901586), (28, 643990), (35, 515192), (40, 450793), (56, 321995), (70, 257596), (140, 128798), (280, 64399)]