686436699212

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{421}}^1\times {\mathrm{306253}}^1$

素因数の和:306711

約数の個数: 48

約数和(自身を含む): 1324443198624

約数和(自身を除く): 638006499412

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 421, 484, 842, 1331, 1684, 2662, 4631, 5324, 9262, 18524, 50941, 101882, 203764, 306253, 560351, 612506, 1120702, 1225012, 2241404, 3368783, 6737566, 13475132, 37056613, 74113226, 128932513, 148226452, 257865026, 407622743, 515730052, 815245486, 1418257643, 1630490972, 2836515286, 5673030572, 15600834073, 31201668146, 62403336292, 171609174803, 343218349606, 686436699212]

約数ペア:

[(1, 686436699212), (2, 343218349606), (4, 171609174803), (11, 62403336292), (22, 31201668146), (44, 15600834073), (121, 5673030572), (242, 2836515286), (421, 1630490972), (484, 1418257643), (842, 815245486), (1331, 515730052), (1684, 407622743), (2662, 257865026), (4631, 148226452), (5324, 128932513), (9262, 74113226), (18524, 37056613), (50941, 13475132), (101882, 6737566), (203764, 3368783), (306253, 2241404), (560351, 1225012), (612506, 1120702)]