20451752

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{683}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 20177848

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 683, 788, 1366, 1576, 2732, 3743, 5464, 7486, 12977, 14972, 25954, 29944, 51908, 103816, 134551, 269102, 538204, 1076408, 2556469, 5112938, 10225876, 20451752]

約数ペア:

[(1, 20451752), (2, 10225876), (4, 5112938), (8, 2556469), (19, 1076408), (38, 538204), (76, 269102), (152, 134551), (197, 103816), (394, 51908), (683, 29944), (788, 25954), (1366, 14972), (1576, 12977), (2732, 7486), (3743, 5464)]