8620520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3533}}^1$

素因数の和:3605

約数の個数: 32

約数和(自身を含む): 19719720

約数和(自身を除く): 11099200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3533, 7066, 14132, 17665, 28264, 35330, 70660, 141320, 215513, 431026, 862052, 1077565, 1724104, 2155130, 4310260, 8620520]

約数ペア:

[(1, 8620520), (2, 4310260), (4, 2155130), (5, 1724104), (8, 1077565), (10, 862052), (20, 431026), (40, 215513), (61, 141320), (122, 70660), (244, 35330), (305, 28264), (488, 17665), (610, 14132), (1220, 7066), (2440, 3533)]