249959720

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{12277}}^1$

素因数の和:12797

約数の個数: 32

約数和(自身を含む): 563560200

約数和(自身を除く): 313600480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 12277, 20360, 24554, 49108, 61385, 98216, 122770, 245540, 491080, 6248993, 12497986, 24995972, 31244965, 49991944, 62489930, 124979860, 249959720]

約数ペア:

[(1, 249959720), (2, 124979860), (4, 62489930), (5, 49991944), (8, 31244965), (10, 24995972), (20, 12497986), (40, 6248993), (509, 491080), (1018, 245540), (2036, 122770), (2545, 98216), (4072, 61385), (5090, 49108), (10180, 24554), (12277, 20360)]