28751720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{6361}}^1$

素因数の和:6485

約数の個数: 32

約数和(自身を含む): 65274120

約数和(自身を除く): 36522400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 6361, 12722, 25444, 31805, 50888, 63610, 127220, 254440, 718793, 1437586, 2875172, 3593965, 5750344, 7187930, 14375860, 28751720]

約数ペア:

[(1, 28751720), (2, 14375860), (4, 7187930), (5, 5750344), (8, 3593965), (10, 2875172), (20, 1437586), (40, 718793), (113, 254440), (226, 127220), (452, 63610), (565, 50888), (904, 31805), (1130, 25444), (2260, 12722), (4520, 6361)]