678929812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{42743}}^1$

素因数の和:42796

約数の個数: 36

約数和(自身を含む): 1367978976

約数和(自身を除く): 689049164

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 361, 418, 722, 836, 1444, 3971, 7942, 15884, 42743, 85486, 170972, 470173, 812117, 940346, 1624234, 1880692, 3248468, 8933287, 15430223, 17866574, 30860446, 35733148, 61720892, 169732453, 339464906, 678929812]

約数ペア:

[(1, 678929812), (2, 339464906), (4, 169732453), (11, 61720892), (19, 35733148), (22, 30860446), (38, 17866574), (44, 15430223), (76, 8933287), (209, 3248468), (361, 1880692), (418, 1624234), (722, 940346), (836, 812117), (1444, 470173), (3971, 170972), (7942, 85486), (15884, 42743)]