28401320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30871}}^1$

素因数の和:30905

約数の個数: 32

約数和(自身を含む): 66683520

約数和(自身を除く): 38282200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 30871, 61742, 123484, 154355, 246968, 308710, 617420, 710033, 1234840, 1420066, 2840132, 3550165, 5680264, 7100330, 14200660, 28401320]

約数ペア:

[(1, 28401320), (2, 14200660), (4, 7100330), (5, 5680264), (8, 3550165), (10, 2840132), (20, 1420066), (23, 1234840), (40, 710033), (46, 617420), (92, 308710), (115, 246968), (184, 154355), (230, 123484), (460, 61742), (920, 30871)]