644489956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{1583}}^1$

素因数の和:2104

約数の個数: 48

約数和(自身を含む): 1298626560

約数和(自身を除く): 654136604

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 487, 836, 974, 1583, 1948, 3166, 5357, 6332, 9253, 10714, 17413, 18506, 21428, 30077, 34826, 37012, 60154, 69652, 101783, 120308, 203566, 330847, 407132, 661694, 770921, 1323388, 1541842, 3083684, 8480131, 14647499, 16960262, 29294998, 33920524, 58589996, 161122489, 322244978, 644489956]

約数ペア:

[(1, 644489956), (2, 322244978), (4, 161122489), (11, 58589996), (19, 33920524), (22, 29294998), (38, 16960262), (44, 14647499), (76, 8480131), (209, 3083684), (418, 1541842), (487, 1323388), (836, 770921), (974, 661694), (1583, 407132), (1948, 330847), (3166, 203566), (5357, 120308), (6332, 101783), (9253, 69652), (10714, 60154), (17413, 37012), (18506, 34826), (21428, 30077)]