30419720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6977}}^1$

素因数の和:7097

約数の個数: 32

約数和(自身を含む): 69082200

約数和(自身を除く): 38662480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6977, 13954, 27908, 34885, 55816, 69770, 139540, 279080, 760493, 1520986, 3041972, 3802465, 6083944, 7604930, 15209860, 30419720]

約数ペア:

[(1, 30419720), (2, 15209860), (4, 7604930), (5, 6083944), (8, 3802465), (10, 3041972), (20, 1520986), (40, 760493), (109, 279080), (218, 139540), (436, 69770), (545, 55816), (872, 34885), (1090, 27908), (2180, 13954), (4360, 6977)]