21600280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41539}}^1$

素因数の和:41563

約数の個数: 32

約数和(自身を含む): 52340400

約数和(自身を除く): 30740120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41539, 83078, 166156, 207695, 332312, 415390, 540007, 830780, 1080014, 1661560, 2160028, 2700035, 4320056, 5400070, 10800140, 21600280]

約数ペア:

[(1, 21600280), (2, 10800140), (4, 5400070), (5, 4320056), (8, 2700035), (10, 2160028), (13, 1661560), (20, 1080014), (26, 830780), (40, 540007), (52, 415390), (65, 332312), (104, 207695), (130, 166156), (260, 83078), (520, 41539)]